Human Body Questions - Anatomy MCQs PDF

HUMAN BODY QUESTIONS ANATOMY MCQS Question N1 The major branches of sciatic nerve are: Answer: the common fibular nerve and tibial nerve Point: 0.5 Question N2 The........................ is the largest nerve of the body Answer: Sciatic nerve Point: 0.5 Question N3 The...

HUMAN BODY QUESTIONS ANATOMY MCQS Question N1 The major branches of sciatic nerve are: Answer: the common fibular nerve and tibial nerve Point: 0.5 Question N2 The........................ is the largest nerve of the body Answer: Sciatic nerve Point: 0.5 Question N3 The sciatic nerve passes through the Answer: greater sciatic foramen bellow the piriformis Point: 0.5 Question N4 The pudendal nerve and internal pudendal vessels passes through the Answer: the greater sciatic foramen below the piriformis muscle, lesser sciatic foramen Point: 0.5 Question N5 The telencephalon (cerebrum) becomes Answer: large cerebral hemispheres Point: 0.5 Question N6 The diencephalon consists of Answer: thalamus, hypothalamus, and other related structures Point: 0.5 Question N7 The......................................... is a thin, avascular membrane that lines, but is not adherent to, the inner surface of the dura mater Answer: Arachnoid mater Point: 0.5 Question N8 Cerebrospinal fluid is produced by the Answer: Choroid plexus Point: 0.5 Question N9 The middle meningeal artery is a branch of the Answer: Maxillary Artery Point: 0.5 Question N10 The final posterior branch of abdominal aorta: Answer: median sacral artery Point: 0.5 Question N11 The inferior vena cava is formed when the two common iliac veins come together at the level of vertebra Answer: LV Point: 0.5 Question N12 The thoracic duct extends from vertebra............. to the root of the neck Answer: LII Point: 0.5 Question N13 The Inferior phrenic artery supplies: Answer: suprarenal gland and inferior surface of the diaphragm Point: 0.5 Question N14 Mitral valve is between Answer: left atrium and left ventricle Point: 0.5 Question N15 which valve is bicuspid Answer: mitral Point: 0.5 Question N16 The hindgut is supplied by the: Answer: inferior mesenteric artery Point: 0.5 Question N17 Pulmonary valve is between Answer: right ventricle and pulmonary trunk Point: 0.5 Question N18 The posterior branches of the abdominal aorta are vessels supplying the Answer: diaphragm or body wall Point: 0.5 Question N19 The third and fourth lumbar veins usually drain into Answer: inferior vena cava Point: 0.5 Question N20 The lesser splanchnic nerve end in the Answer: aorticorenal ganglion Point: 0.5 Question N21 The least splanchnic nerve (lowest splanchnic nerve) end in the Answer: renal plexus Point: 0.5 Question N22 The anterior mediastinum is Answer: posterior to the body of the sternum and anterior to the pericardial sac Point: 0.5 Question N23 The posterior mediastinum is Answer: anterior to the body of thoracic vertebrae and posterior to the pericardial sac Point: 0.5 Question N24 The trachea bifurcates at level Answer: TIV/V Point: 0.5 Question N25 In most cases sinu-atrial and atrioventricular nodes are supplied by the Answer: Right coronar artery Point: 0.5 Question N26 The..................... allows oxygenated blood entering the right atrium through the inferior vena cava to pass directly to the left atrium Answer: Foramen ovale Point: 0.5 Question N27 Tricuspid valve (right atrioventricular valve ) has 3 cusps: Answer: anterior, septal, and posterior cusps Point: 0.5 Question N28 The cusps of the pulmonary valve are named the Answer: left, right, and anterior cusps Point: 0.5 Question N29 The middle cardiac vein lies in the Answer: the posterior interventricular sulcus Point: 0.5 Question N30 The great cardiac vein lies in the Answer: the anterior interventricular sulcus Point: 0.5 Question N31 The anterior and posterior ethmoidal arteries originate from the Answer: Opthalmic Artery Point: 0.5 Question N32 The internal pudendal artery originates as a branch of Answer: Internal iliac artery Point: 0.5 Question N33 The inferior rectal arteries originate from the Answer: Internal Pudental Artery Point: 0.5 Question N34 The circumflex scapular artery and vein pass through the Answer: triangular space Point: 0.5 Question N35 The radial nerve pass through the Answer: triangular interval Point: 0.5 Question N36 The............................ nerve innervates most muscles in the medial compartment of the thigh Answer: Obturator Point: 0.5 Question N37 The......................... is the largest sesamoid bone in the body Answer: Patella Point: 0.5 Question N38 The anterior compartment of the thigh contains muscles that mainly ………….. the leg at the knee joint Answer: Extend Point: 0.5 Question N39 The posterior compartment of the thigh contains muscles that mainly ……. the leg at the knee joint Answer: Flex Point: 0.5 Question N40 The femoral artery is the continuation of the Answer: External Iliac Artery Point: 0.5 Question N41 Epicardium is the Answer: visceral layer of serous pericardium Point: 0.5 Question N42 The narrow space created between the two layers of serous pericardium is Answer: Pericardial cavity Point: 0.5 Question N43 The portal vein is formed at the level of vertebra Answer: LII Point: 0.5 Question N44 Posterior to the neck of the pancreas, the superior mesenteric vein joins the splenic vein to form the Answer: Portal vein Point: 0.5 Question N45 The vasa recta supplying the jejunum are usually Answer: long and close together Point: 0.5 Question N46 The vasa recta supplying the ileum are Answer: Short and far apart Point: 0.5 Question N47 Appendicular artery is branch of Answer: ileocolic artery Point: 0.5 Question N48 Left colic artery is branch of Answer: Inferior mesenteric artery Point: 0.5 Question N49 Superior rectal artery is branch of Answer: Inferior mesenteric artery Point: 0.5 Question N50 The right gastro-omental artery is branch of Answer: gastroduodenal artery Point: 0.5 Question N51 The facial artery is superficial to the: Answer: buccinator and levator anguli oris Point: 0.5 Question N52 the supratrochlear and supra-orbital veins come together to form the Answer: angular vein Point: 0.5 Question N53 Facial artery terminates as a Answer: Angular Artery Point: 0.5 Question N54 The nasopalatine nerve pass from the nasal cavity into the oral cavity thgough the Answer: Incisive canal Point: 0.5 Question N55 The lateral nasal artery originates from the Answer: facial artery Point: 0.5 ANATOMY TRUE AND FALSE Question N1 The azygos vein arises opposite vertebra LI or LII at the junction between the left ascending lumbar vein and the left subcostal vein Answer: 0 Point: 0.25 Question N2 The cardiac skeleton also serves as a dense connective tissue partition that electrically isolates the atria from the valves Answer: 0 Point: 0.25 Question N3 The right pump of heart receives oxygenated blood from the lungs and sends it to the body Answer: 0 Point: 0.25 Question N3 Most commonly left coronary artery is dominant Answer: 0 Point: 0.25 Question N4 The posterior branches of the abdominal aorta are superior phrenic arteries , the lumbar arteries , and the median sacral artery Answer: 0 Point: 0.25 Question N5 The stomach and spleen are in the left lower quadrant Answer: 0 Point: 0.25 Question N6 The middle meningeal artery is a branch of the mandibular artery Answer: 0 Point: 0.25 Question N7 In the fetus, the umbilical artery is large and carries blood from the placenta to the fetus Answer: 0 Point: 0.25 Question N8 Median sacral artery passes in an inferior direction, first over the anterior surface of the lower lumbar vertebrae and then over the anterior surface of the sacrum and coccyx Answer: 1 Point: 0.25 Question N9 The liver and gallbladder are in the right upper quadrant Answer: 1 Point: 0.25 Question N10 The stomach and spleen are in the left lower quadrant Answer: 0 Point: 0.25 Question N11 The middle meningeal artery is a branch of the mandibular artery Answer: 0 Point: 0.25 ANATOMY FILL IN THE BLANKS Question N1 The region outlined by pleural reflection on the medial surface of the lung is the , where structures enter and leave. Answer: hilum Point: 0.5 Question N2 Pleura associated with the walls of a pleural cavity is........................... Answer: Parietal Pleura Point: 0.5 Question N3 Pleura that reflects from the medial wall and onto the surface of the lung is , which adheres to and covers the lung. Answer: `Visceral Pleura Point: 0.5 Question N4 The nasal cavities are separated from oral cavity with by the Answer: Hard and soft palates Point: 0.5 Question N5 Facial artery is branch of Answer: external carotid artery Point: 0.5 Question NN Mandibular nerve exits the skull through the Answer: foramen ovale PHYSIOLOGY MCQS Question N1 The growth of new blood vessels can be inhibited by Answer: All of the Above Point: 0.5 Question N2 V/Q equation is more than 1 in Answer: upper part of the lung Point: 0.5 Question N3 Conductive system of the heart has capacity of creating heart rate, but not the same degree. What will be sequence of pacemakers (from high activity to low) Answer: SA node, AV node, Bundle of His, Purkinje fibers Point: 0.5 Question N4 In cardiac conductive system phase 1 is created by Answer: Sodium funny channels Point: 0.5 Question N5 Calcium source for the cardiac muscle mostly is Answer: extracellular space Point: 0.5 Question N6 PQ (PR) interval on ECG represents Answer: AV nodal conduction Point: 0.5 Question N7 Which phase of diastole is the most effective to direct much more blood from the atrium to the ventricle Answer: Rapid filling phase Point: 0.5 Question N8 Which of the following would decrease mean arterial blood pressure? Answer: dilation of the arterioles Point: 0.5 Question N9 Peripheral resistance Answer: increases as blood viscosity increases Point: 0.5 Question N10 Pulse pressure is higher in the Answer: Large Arteries Point: 0.5 Question N11 During heavy exercise Answer: total peripheral resistance is decreased and inotropy is increased Point: 0.5 Question N12 The ,,a” wave on the atrial pressure curve is caused by Answer: atrial contraction Point: 0.5 Question N13 Ventricular pressure is higher than the atrial pressure in all phases of the cardiac cycle except in Answer: rapid ventricular filling phase Point: 0.5 Question N14 Systolic pressure in right ventricle is Answer: 25 mmHg Point: 0.5 Question N15 Lymph capillaries differ from systemic blood capillaries in that they Answer: Are absent in the CNS Point: 0.5 Question N16 Edema may be caused by Answer: All of the above Point: 0.5 Question N17 Flow of fluid through the lymphatic vessels will be decreased if there is an increase in: Answer: capillary oncotic pressure Point: 0.5 Question N18 Which of the following is decreased after compensation for the hemorrhage by baroreceptor reflex? Answer: Venous Compliance Point: 0.5 Question N19 If a patient has an edema of both legs, reason can be Answer: right heart failure, liver failure, neprhrotic syndrome Point: 0.5 Question N20 The greatest percentage of blood volume is found in the Answer: Veins Point: 0.5 Question N21 Which of the following is NOT true? Answer: Renin-angiotensin vasoconstrictor system is faster to act for blood pressure control than the nervous reflexes Point: 0.5 Question N22 Nitric oxide Answer: has mainly a local action Point: 0.5 Question N23 Which of the following is NOT true about baroreceptors? Answer: Effect of their activation is increased heart rate Point: 0.5 Question N24 Which of the following statements is correct Answer: Veins contain valves and arteries do not Point: 0.5 PHYSIOLOGY TRUE AND FALSE Question N25 The highest pressure in veins is in the leg Answer: 1 Point: 0.25 Question N26 Severe hyperventilation (low CO2) can lead to loss of consciousness Answer: 1 Point: 0.25 Question N27 Collateral flow can demage the myocardium Answer: 0 Point: 0.25 Question N28 Isovolumic relaxation time (IVRT) - is the interval from aortic valve closure to mitral valve opening. Answer: 1 Point: 0.25 Question N29 Atrial contraction corresponds 70-80 % of total ventricular filling Answer: 0 Point: 0.25 Question N30 The residual volume is the volume of air remaining in the lungs after the most forceful expiration Answer: 1 Point: 0.25 Question N31 The small diameter airways are the main sites of airways resistance Answer: 0 Point: 0.25 Question N32 The lungs are fully emptied and filled with each breath Answer: 0 Point: 0.25 Question N33 PO2 in the pulmonary vein and the left atrium is equal Answer: 0 Point: 0.25 Question N34 The central chemoreceptors sense the oxygen tension of the arterial blood Answer: 0 Point: 0.25 Question N35 The smaller the alveolus, the greater the alveolar pressure caused by the surface tension Answer: 1 Point: 0.25 Question N36 Cardiac pain can be irradiated to the back, right arm, jaw Answer: 1 Point: 0.25 Question N37 During heart failure main reason of edema is decreased capillary hydrostatic pressure. Answer: 0 Point: 0.25 Question N38 The second heart sound is heard at the beginning of ventricular relaxation Answer: 1 Point: 0.25 Question N39 The anatomical dead space is independent of the tidal volume Answer: 0 Point: 0.25 Question N40 The ischemic effect on vasomotor activity can greatly elevate the mean arterial pressure Answer: 1 Point: 0.25 Question N41 Cardiac conductivity occurs through modified cardiac muscle fibers Answer: 1 Point: 0.25 Question N42 Cardiac muscle uses aerobic and anaerobic source of energy Answer: 0 Point: 0.25 PHYSIOLOGY FILL IN THE BLANKS Question N43 Acetylcholine causes ------------ of the S-A node Answer: Inhibition Point: 0.5 Question N44 Capillaries are arranged in circuits. Answer: parallel Point: 0.5 Question N45 Heart sounds can be amplified and recorded on a. Answer: phonocardiogram Point: 0.5 Question N46 Structure which can open and close the entrance to the capillary is called. Answer: sphincter Point: 0.5 Question N47 Frank-starling law shows relationship between and stroke volume. Answer: endiastolic Point: 0.5 Question N48 Norepinephrine stimulates receptors, which mediate the effects on heart rate. Answer: a1,a2 adrenergic Point: 0.5 HISTOLOGY MCQS Question N1 The placenta formed by Answer: the chorion frondosum together with the decidua basalis Point: 0.5 Question N2 Peristaltic contractions of uterine smooth muscle causes by Answer: Oxitocyn Point: 0.5 Question N3 The large numbers of alveolar macrophages that migrate into lumens of alveoli are derived from Answer: Monocyte in circulating blood Point: 0.5 Question N4 Which type of fiber helps the trachea to adapt its shape during inspiration and expiration Answer: Elastin fibers Point: 0.5 Question N5 What type of tissue makes up the epiglottis Answer: Elastic cartilage Point: 0.5 Question N6 Which structure contains pores? Answer: Sinusoidal capillaries Point: 0.5 Question N7 Which cell secretes surfactant? Answer: Type II pneumocyte Point: 0.5 Question N8 The mesenchymal cells which aggregate to form blood islands are called: Answer: angioblasts Point: 0.5 Question N9 The remnant of the first aortic arch artery is: Answer: maxillary artery Point: 0.5 Question N10 The aortic sac: Answer: is connected to the dorsal aorta via the aortic arch arteries Point: 0.5 Question N11 The epithelium of the internal lining of the larynx, trachea, bronchi and alveoli is entirely Answer: endodermal Point: 0.5 Question N12 The region of the atrioventricular canal develops into: Answer: the mitral and tricuspid valves Point: 0.5 Question N13 The lung buds grow into the coelomic cavity in the region: Answer: pericardio-peritoneal canals Point: 0.5 Question N14 The lung bud mesenchyme gives rise to the: Answer: smooth muscles Point: 0.5 Question N15 Which one of the following hormoneslowers blood calcium levels by inhibitingbone resorption? Answer: Calcitonin Point: 0.5 Question N16 Development of nervous system begins Answer: During 3th week Point: 0.5 Question N17 The maternal component of the placenta is derived from Answer: the uterine endometrium Point: 0.5 Question N18 Which cells are found in large numbers in the terminal bronchioles Answer: Clara cells Point: 0.5 Question N19 Which cells are located at the basal lamina of the olfactory mucosa Answer: Basal cells Point: 0.5 Question N20 An olfactory cells is Answer: None of the above Point: 0.5 Question N21 The lining of lymphatic vessels is composed of which of the following cell type? Answer: Stratified squamous epithelium Point: 0.5 Question N22 After meiosis II four daughter cells are formed. They contain: Answer: Haploid number of nonduplicated chromosomes; Point: 0.5 Question N23 Crossovers are critical events Answer: In meiosis I, when the interchange of chromatid segments between paired homologous chromosomes is occur Point: 0.5 Question N24 How many mature gametes has male from one primary spermatocyte after meiosis II Answer: four mature spermatozoa with no polar body Point: 0.5 Question N25 Maturation of the sperm begins Answer: At puberty Point: 0.5 Question N26 Intraembryonic cavity appearsin Answer: Intermediate mesoderm Point: 0.5 Question N27 The heart is derived from: Answer: Splanchnic mesoderm Point: 0.5 Question N28 Each of the following statements are correctly paired EXCEPT: Answer: right umbilical vein – definitive umbilical vein Point: 0.5 Question N29 The changes that normally occur shortly after birth include: Answer: The Umbilical arteries become medial umbilical ligaments Point: 0.5 Question N30 What does the fourth aortic arch develop into on the left and right side of the body? Answer: Left = arch of the aorta, right = right subclavian artery Point: 0.5 Question N31 What does the ductus venosus become once it has closed? Answer: Ligamentum venosus Point: 0.5 Question N32 What is the name of the hole formed when the septum secundum grows downwards during the separation of the atria? Answer: Foramen ovale Point: 0.5 Question N33 Alveolar macrophages are also called Answer: Dust cells Point: 0.5 Question N34 What is main function of carotid sinus? Answer: Receptor of the blood pressure Point: 0.5 Question N35 Which of the following is the function of endothelium: Answer: All of the above Point: 0.5 Question N36 Which of the following is true for atria: Answer: Receives blood directly from veins Point: 0.5 Question N37 Which of the following is true for pericytes: Answer: Are associated with capillary endothelial cells Point: 0.5 Question N38 Which description is true for discontinues capillaries Answer: Sinusoidal Capillaries are found in the spleen Point: 0.5 Question N39 Gonadotrophin releasing hormone is produced by Answer: Hypothalamus Point: 0.5 Question N40 Which is the thickest layer for the veins? Answer: Tunica adventitia Point: 0.5 Question N41 Tertiary bronchi are characterized by: Answer: Broken plates of hyaline cartilage Point: 0.5 Question N43 Which ovarian hormone regulates secretory phase? Answer: Progesterone Point: 0.5 Question N44 Lacunae appear within: Answer: Syncytiotrophoblast (ST) Point: 0.5 Question N45 Which of the following processes is the beginning of morphogenesis? Answer: Gastrulation Point: 0.5 Question N46 Kidneys are derived form: Answer: Intermediate mesoderm Point: 0.5 Question N47 This hormone is excreted by the mother in the urine and is used as an indicator of pregnancy: Answer: Human chorionic gonadotropin (hCG) Point: 0.5 Question N48 Laryngeal muscles originate from myoblasts in: Answer: B and C Point: 0.5 Question N49 When segmental bronchi starts formation? Answer: By the seventh week Point: 0.5 Question N50 Graafian follicle is formed: Answer: Before ovulation point Point: 0.5 Question N51 Ovulation is induced by Answer: LH peak Point: 0.5 Question N52 Which of the following cavities is not formed during second week of embryonal development Answer: Intraembryonic cavity Point: 0.5 Question N53 Heart begins to beat on Answer: 21st day Point: 0.5 Question N54 Which cartilage of the larynx is made of hyaline cartilage? Answer: A and B Point: 0.5 Question N56 What is the name of the shunt that exists between the aorta and the pulmonary artery in fetal circulation? Answer: Ductus arteriosus Point: 0.5 Question N57 Which two parts of the primitive heart tube form the outflow tract? Answer: Truncus arteriosus and bulbus cordis Point: 0.5 Question N58 The fetal left atrium is mainly derived from the: Answer: Primordial pulmonary vein Point: 0.5 Question N59 What leads to the closure of the foramen ovale? Answer: Pressure in the left atrium exceeding that in the right atrium Point: 0.5 Question N60 How would you best describe the folding that brings the primitive heart tube into the thoracic region of the embryo? Answer: Cephalo-Caudal folding Point: 0.5 Question N61 Which small vessels supply blood to the tissues of the vessel? Answer: Vasa vasorum Point: 0.5 Question N62 What is the thickest layer of wall of the arteries? Answer: Tunica media Point: 0.5 Question N63 Which of the following would be least likely to be found in lymph fluid? Answer: Red blood cells Point: 0.5 Question N64 Both ciliated epithelial cells and goblet cells are presented in all of the following except: Answer: Alveoli Point: 0.5 Question N65 Somites are derived from: Answer: Paraxial mesoderm Point: 0.5 Question N66 Which of the following is not mesoderm derivative? Answer: Retina Point: 0.5 Question N67 Name the stages of lung maturation in the correct order of weeks: Answer: Canalicular Stage – 16 to 25 weeks Point: 0.5 Question N68 The oxygen rich blood comes from maternal body into the intervillous spaces by the: Answer: Spiral arteries Point: 0.5 Question N69 Pulmonary surfactant most likely begins to form in the fetus at about: Answer: 20 to 22 weeks Point: 0.5 Question N70 The cranial portion of the foregut is divided by tracheoesophageal septum into: Answer: All of the above Point: 0.5 Question N71 The connective tissue of the trachea is derived from: Answer: Splanchnic mesenchyme Point: 0.5 Question N72 The respiratory bud originates form: Answer: distal end of laryngotracheal diverticulum Point: 0.5 Question N73 The embryonic origin of the ligamentum arteriosum is from the Answer: Sixth arch artery Point: 0.5 Question N74 Cloaca is formed from the terminal part of Answer: Hindgut Point: 0.5 Question N75 Parietal layer of serous membranes lining the outside of the Answer: Peritoneal, pleural, pericardial cavities Point: 0.5 Question N136 Both ciliated epithelial cells and goblet cells are presented in all of the following except: Answer: Alveoli Point: 0.5 TRUE AND FALSE Question N76 The primitive heart is partitioned into four separate chambers during the fourth week. Answer: 0 Point: 0.25 Question N77 Embryonic red blood cells only differ from adult cells in still having nuclei Answer: 0 Point: 0.25 Question N78 Initially, the lung bud is in open communication with the foregut. Answer: 1 Point: 0.25 Question N79 Trachea and esophagus are derived from the foregut via lung buds. Answer: 0 Point: 0.25 Question N80 Splanchnic mesoderm covers the outside of the lung, develops into the visceral pleura. Answer: 1 Point: 0.25 Question N81 alveoli are surrounded by smooth muscle layer; Answer: 0 Point: 0.25 Question N82 lymphocytes are FORMED in secondary lymphoid organs; Answer: 0 Point: 0.25 Question N83 High serum T3 has negative feedback on TSH release by anterior pituitary Answer: 1 Point: 0.25 Question N84 cytokines can be produced by cells beside immune cells; Answer: 1 Point: 0.25 Question N85 The principal cells of the parathyroid glands are small polygonal cells with round nuclei and slightly acidophilic cytoplasm Answer: 1 Point: 0.25 Question N86 Outer cell masses of blastocyst differentiate into epiblast and hypoblast Answer: 0 Point: 0.25 Question N87 The body cavity finally will be subdivided into the one pleural, two pericardial and one peritoneal (abdominal) cavity Answer: 0 Point: 0.25 Question N88 The cardiovascular system begins to develop during the third week Answer: 1 Point: 0.25 Question N89 The Fetal and maternal blood vessels anastomose in the placenta Answer: 0 Point: 0.25 Question N90 Meiosis II of female germ cells is completed only if the oocyte is fertilized Answer: 1 Point: 0.25 Question N91 Air moving across the vocal cords and causing them produce sound is contacting Stratified squamous keratinized epithelium. Answer: 0 Point: 0.25 Question N92 Surfactant counteracts surface tension of the terminal sacs by preventing alveolar collapse. Answer: 1 Point: 0.25 Question N93 Early in the fifth week of human development, the connection of each bronchial bud with the trachea enlarges to form the primordia of the main bronchi. Answer: 1 Point: 0.25 Question N94 Before birth, the primordial alveoli appear as small bulges on the walls of terminal bronchoiles. Answer: 0 Point: 0.25 Question N95 The truncus ridges may fail to spiral resulting in transposition of the great vessels Answer: 1 Point: 0.25 Question N96 Muscular Arteries are called "conducting arteries". Answer: 0 Point: 0.25 Question N97 Dorsal mesentery suspends the gut tube from the posterior body wall into the peritoneal cavity Answer: 1 Point: 0.25 Question N98 The umbilical cord has one artery and two veins Answer: 0 Point: 0.25 Question N99 The pulmonary surfactant prevents alveolar collapse by increasing surface tension Answer: 0 Point: 0.25 Question N100 The visceral pleura that covers each lung is a layer of thin connective tissue and mesothelium Answer: 1 Point: 0.25 Question N101 During the neonatal period closes the ductus venosus Answer: 1 Point: 0.25 Question N102 Blood from the intervillous lakes drains back into the maternal circulation through the endometrial veins Answer: 1 Point: 0.25 Question N103 Lung development is divided into three stages: the Pseudoglandular stage, canalicular and alveolar stages. Answer: 0 Point: 0.25 Question N104 The olfactory epithelium covers the roof of the nasal cavity. Answer: 1 Point: 0.25 Question N105 In the normal fetal circulation, blood from the placenta bypasses the sinusoidal plexus of the liver by way of the ductus venosus Answer: 1 Point: 0.25 Question N106 Abnormal origin of the right subclavian artery results from abnormal obliteration of the right 7th intersegmental artery Answer: 0 Point: 0.25 Question N107 PTH decreases the activity of osteoclasts Answer: 0 Point: 0.25 Question N108 With increasing age many secretory cells of parathyroid gland are replaced with adipocytes Answer: 1 Point: 0.25 Question N109 The hypoparathyroidism can cause bones to become less mineralized and striated muscle to exhibit abnormal contractions Answer: 0 Point: 0.25 Question N110 Pericytes are find in the wall of all blood vessels. Answer: 0 Point: 0.25 Question N111 The epicardium is a simple columnar mesothelium supported by a layer of loose connective tissue. Answer: 0 Point: 0.25 Question N112 Capillaries of pulmonary alveoli are larger in diameter than average systemic capillaries Answer: 1 Point: 0.25 Question N113 Ciliated pseudostratified columnar epithelium is found in bronchioles Answer: 0 Point: 0.25 Question N137 Lung development is divided into three stages: the Pseudoglandular stage, canalicular and alveolar stages. Answer: 0 Point: 0.25 Question N138 The olfactory epithelium covers the roof of the nasal cavity. Answer: 1 Point: 0.5 Question N139 In the normal fetal circulation, blood from the placenta bypasses the sinusoidal plexus of the liver by way of the ductus venosus Answer: 1 Point: 0.5 Question N140 Abnormal origin of the right subclavian artery results from abnormal obliteration of the right 7th intersegmental artery Answer: 0 Point: 0.25 OPEN QUESTIONS Question N114 About 70% of all NTDs (neural tube defects) can be prevented by the vitamin acid. Answer: folic acid Point:0.50 Question N115 The second stage of labor is. Answer: The cervix is fully dilated and the fetus descends through the cervix and vagina Point:0.50 Question N116 The surfactant is produced by pneumocytes. Answer: type 2 Point:0.50 Question N117 The tracheal rings comprise cartilage. Answer:hyaline Point:0.50 Question N118 Chronic inflammation of the thyroid gland leading to decreased activity is called. Answer: Chronic Thyroiditis Point: 0.50 Question N119 Epithelium of the internal lining of the larynx, trachea, bronchi, and lungs is entirely of origin. Answer: Endodermal Point: 0.50 Question N120 is a complication of tracheoesophageal fistulas (TEF); amniotic fluid does not pass down to stomach and intestine. Answer: Polyhydramnios Point: 0.50 Question N121 The region of the early heart tube that corresponds to the inflow and out flow respectively are Answer: Sinus Venosus and Truncus arteriosus Point: 0.50 Question N122 Development of new vessels from preexisting vessels is called Answer: Angiogenesis Point: 0.50 Question N21 The lumen of each thyroid follicle is surrounded by a of thyrocytes. Answer: simple cuboidal Point: 0.50 Question N123 Fertilization takes place in tubes. Answer: Fallopian Question N124 At the fourth week, the is responsible for the inflow of blood to the primitive heart. Answer: Sinus Venous Point: 0.50 Question N125 Respiratory distress syndrome, the leading cause of death in premature babies, is due to lack of Answer: Surfactant Point: 0.50 Question N126 Type II pneumocytes are also called a cells Answer: Septal cells Point: 0.50 Question N127 The is the functional unit of the respiratory system where gas exchange occurs Answer: alveoli Point: 0.50 Question N128 The and spongy layers are expelled from the uterus, and basal layer is the only part of the endometrium that is retained. Answer: Compact Point: 0.50 Question N129 The laryngotracheal diverticulum maintains communication with through the primordial laryngeal inlet. Answer: Primordial Pharynx Point: 0.50 Question N130 The narrow opening between vocal folds is called. Answer: Rima Glottides Point: 0.50 Question N131 Lymphatic capillaries converge into larger with thin walls and increasing amount of connective and muscle tissue. Answer: lymphatic vessels Point: 0.50 Question N132 Valves of the veins consist of thin, paired folds of. Answer: Tunica Intima Point: 0.50 Question N133 The is one of the first body systems to appear within the embryo. Answer: Cardiovascular system Point: 0.50 Question N134 As the lungs develop, they acquire a layer of. Answer: Visceral Pleura Point: 0.50 Question N24 Bilaminar embryonic disc is formed during embryonal week. Answer: 2nd week Point: 0.50 Question N135 The creates the heart tube by bringing together two precursor regions. Answer: Lateral embryonic folding Point:0.50 Question N141 Thyroid colloid contains the glycoprotein , the precursor for the active thyroid hormones. Answer: Thyroglobulin Point: 0.50 Question N142 Chronic iodine deficiencies thyroid hormone production. Answer: Decrease Point: 0.50 Question N143 The develops from the caudal part of the Hypopharyngeal eminence. Answer: epiglottis Point: 0.50 Question N143 Thyroid hormones are carried in blood bound to. Answer: Albumin Point: 0.50 Question N144 The embryo, amniotic sac and umbilical vesicle are suspended in the chorionic sac by the. Answer: Connecting Stalk Point: 0.50 NEW QUESTIONS HISTOLOGY Question N145 Intraembryonic cavity is derived from lateral mesoderm Answer: 1 Point:0.25 Question N146- Ossification of the fetal skeleton is most active during 13-16 weeks Answer: 1 Point: 0.25 Question N147- Central nervous system is derived from the surface ectoderm Answer: 0 Point: 0.25 Question N148- The central tendon of the diaphragm is formed by septum transversum Answer: 1 Point: 0.25 Question N149 ______ have only one or two smooth muscle layers. Answer:Arterioles Point: 0.5  Question N150 ____ capillaries have very large intercellular clefts that allow proteins to pass from a tissue into the bloodstream. Answer: Discontinuous Capillaries Point: 0.5 Question N151 The series of changes resulting in the transformation of spermatogonia into spermatozoa is called _____. Answer:spermatogenesis Point: 0.5 Question N152 ------------ form the arteries of the aortic arch Answer: Aortic Sac Point: 0.5 Question N153 ------------ forms part of the right atrium and vena cava Answer: Right sinus horn Point:0.5 Question N154 The left sinus horn becomes the --------- which drains venous blood from the coronary vessels into the right atrium Answer: Coronary Sinus Point :0.5 Question N155 The lining of the dorsal and ventral aspects of the developing heart grow small bumps called Answer: Endocardial cushions (not sure, blame fares if you get it wrong) Point: InshaAllah 0.5 Question N156 At Birth,the following changes in circulation take place, EXCEPT: Answer: Relaxation of the thoracic diaphragm Point: 0.5 Question N157: Capillary beds are supplied by one or more terminal arteriole branches called metarterioles Answer:1 Point:0.25 Question N158 The interna surface of all components of the cardiovascular system is lined by a simple squamous epithelium Answer:1 Point: 0.25