Mansoura University Faculty of Medicine Formative Exam PDF

‫اﻻﻣﺘﺤﺎﻧﺎت اﻟﺴﺎﺑﻘﺔ‬ (62) ‫ﻟﻠﺪﻓﻌﺔ‬ Formative Continuous Exams (Mid) Final Exams (Mid + Summer) ‫ اﻟﺼﺎوي‬.‫د‬  ‫أﺳ ﻠﺔ اﻟﻔﻮرﻣﺎﺗﻴﻒ‬ ‫)اﻣﺘﺤﺎن اوﻧﻼﻳﻦ ﻣﻦ اﻟﻜﻠﻴﺔ(‬  ‫جامعة المنصورة‬ Mansoura University Faculty o...

‫اﻻﻣﺘﺤﺎﻧﺎت اﻟﺴﺎﺑﻘﺔ‬ (62) ‫ﻟﻠﺪﻓﻌﺔ‬ Formative Continuous Exams (Mid) Final Exams (Mid + Summer) ‫ اﻟﺼﺎوي‬.‫د‬  ‫أﺳ ﻠﺔ اﻟﻔﻮرﻣﺎﺗﻴﻒ‬ ‫)اﻣﺘﺤﺎن اوﻧﻼﻳﻦ ﻣﻦ اﻟﻜﻠﻴﺔ(‬  ‫جامعة المنصورة‬ Mansoura University Faculty of Medicine ‫كلية الطب‬ Formative Exam ‫البرنامج المطور‬ Level 1, Semester 1 November, 21th, 2024 Total marks: 15 marks Time allowed: 15 minutes Part (1) MCQ Choose a Single Correct Answer: 1. What is the major mode of removal of catecholamines from the synaptic cleft? a. Reuptake by the presynaptic nerve terminal. b. Endocytosis by the postsynaptic neuron. c. Breakdown by COMT A d. Breakdown by MAO e. Diffusion. 2. 55-year-old female has undergone a spinal cord surgery in the neck and upper thoracic regions. After surgery, she complained from eye and skin signs and this was diagnosed as Horner's syndrome. In Horner syndrome, which one of the following signs may occur? a. Bilateral sympathetic defect to head but never occurs unilateral. b. Elevation of upper eye lids. c. Ptosis. C d. Mydriasis e. Exophthalmos. 3. Which of the following represent a good example for cerebral cortex control over autonomic functions? a. Light reflex. b. Hunger sensation E c. Vasomotor tone. d. Control of the body temperature. e. Increased secretion of saliva and gastric juice even on thinking or seeing food. Mansoura University, Faculty of Medicine Page 1 of 11  Mansoura University Level 1, Semester 1 Formative Exam Faculty of Medicine November, 21th, 2024 4. What is the sympathetic mass stimulation? a. No activity of the sympathetic nervous system b. Basal activity of sympathetic nervous system. c. Sweat secretion during hot weather. D d. Maximum activity of sympathetic nervous system e. Local activity of sympathetic nervous system 5. The membrane potential will depolarize by the greatest amount if the membrane permeability increases for which of the following ions? a. Sodium and potassium. b. Chloride. c. Potassium. D d. Sodium. 6. A neuron fires when which one of the following events occur? a. Depolarization at the axon hillock exceeds the threshold for excitation b. There is an excitatory postsynaptic potential (EPSP). c. Hyperpolarization occurs at the axon hillock. A d. Neurotransmitters dock onto receptor proteins. e. Chloride channels open 7. Local anesthetic drugs take effect by which of the following mechanisms? a. Internal block of axonal voltage-gated sodium channel b. Inhibiting the action of acetylcholinesterase in the synapse c. Internal block of axonal voltage-gated potassium channels A d. Blocking nicotinic acetylcholine receptors at the synapse e. Blocking neurotransmitter release from neuronal terminals 8. About the repolarization, which of the following is TRUE? a. Results from closure of sodium gates and opening of potassium gates b. Occurs at first gradual then becomes fast c. Is followed by appearance of response A d. Occurs due to K influx e. Is represented by the ascending limb of the spike Mansoura University, Faculty of Medicine Page 2 of 3  Mansoura University Level 1, Semester 1 Formative Exam Faculty of Medicine November, 21th, 2024 9. About the nerve impulse, which of the following is TRUE? a. Maximum conduction is one meter per second b. Can travel in one direction only c. Is conducted by the same speed in different axons D d. Requires energy e. Is not delayed at synapses before transmission 10. Which one of the following has the highest permeability in a resting nerve cell? a. Na+ b. HCO3- c. H+ E d. CI- e. K+ 11. The velocity of conduction of action potentials along a nerve will be increased by which one of the following? a. Decreasing the diameter of the nerve b. Lengthening the nerve fiber c. Myelinating the nerve C d. Local anesthetics e. Pressure on the axons 12. Saltatory conduction in myelinated axons results from which one of the following? a. Salt concentration is increased beneath the myelin segments b. Capacitance is decreased at the nodes of Ranvier c. Nongated ion channels are present beneath the segments of myelin D d. Voltage-gated Na+ channels are concentrated at nodes of Ranvier e. Membrane resistance is decreased beneath the segments of myelin 13. The after-hyperpolarization phase of the action potential is caused by which one of the following? a. An outward chloride current b. An outward potassium current c. An inward chloride current B d. An outward sodium current e. An outward calcium current Mansoura University, Faculty of Medicine Page 3 of 3 Continuous Exam (‫)اﻣﺘﺤﺎن اﻟﻤﻴﺪ‬ Mansoura University ‫جامعة المنصورة‬ Faculty of Medicine ‫كلية الطب‬ AEP-101 Continuous Assessment Date: December, 30th, 2023 Level one, Semester one Time allowed: 60 minutes Total marks: 45 marks............... :‫رقم الجلوس‬...................................................................... :‫االسم‬ Choose a Single Correct Answer: 1. Which one of the following terms means movement towards the midline? a) Adduction b) Depression c) Elevation A d) Extension e) Flexion 2. Which of the following bones belongs to the appendicular skeleton? a) Fibula. b) Vertebra. c) Ribs. d) Skull. A e) Sternum. 3. Which one of the following is the fleshy part of the skeletal muscle? a) Aponeurosis b) Belly c) Insertion B d) Origin e) Tendon 4. Which one of the following helps in holding the tendons around the ankles in its position? a) Intermuscular septa b) Investing fascia c) Retinacula C d) Sheathes e) Superficial fascia Mansoura University, Faculty of Medicine 1 Level one, Semester one, AEP 101 Continuous Assessment  Mansoura University AEP 101 Level 1, Semester 1 Faculty of Medicine Continuous Assessment November, 30th, 2023 5. Which one of the following is considered as a fibrous joint? a) Elbow b) Intervertebral disc c) Shoulder D d) Suture e) Wrist 6. A young man was brought to the emergency room after a motorcycle accident. He complained of severe pain and unable to move his right arm. Radiological examination revealed dislocation of the upper part of the humerus. What is the type of the joint involved? a) Fibrous syndesmosis. b) Secondary cartilaginous. C c) Synovial ball and socket. d) Synovial hinge. e) Synovial plane. 7. Where is the trigone of the urinary bladder? a) Around the neck. b) In the inner aspect of superior surface. c) In the inner aspect of the apex. D d) In the inner aspect of the posterior surface. e) On the outer surface of the base. 8. Which one of the following normally forms the apex of the heart? a) Interatrial septum b) Left atrium c) Left ventricle C d) Right atrium e) Right ventricle 9. If your patient is diagnosed to have breast cancer, you should firstly examine which of the following lymph node groups? a) Aortic b) Axillary c) Iliac B d) Inguinal e) Popliteal Mansoura University, Faculty of Medicine 2 Level one, Semester one, AEP 101 Continuous Assessment  Mansoura University AEP 101 Level 1, Semester 1 Faculty of Medicine Continuous Assessment November, 30th, 2023 10. Which one of the following air way parts is obstructed in case of enlarged adenoid? a) Laryngopharynx b) Larynx c) Nasal cavity d) Nasopharynx D e) Oropharynx 11. A-60-year-old female was diagnosed with colon cancer. The cancer is located in the lower right part of the abdominal cavity. Which part of the colon might be affected? a) Cecum b) Descending colon c) Right colic flexure A d) Sigmoid colon e) Transverse colon 12. Which one of the following is the widest part of GIT? a) Colon b) Duodenum c) Jejunum E d) Rectum e) Stomach 13. Which one of the following is the lower part of the brainstem? a) Conus medullaris b) Diencephalon C c) Medulla oblongata d) Midbrain e) Pons 14. Which one of the following parts of spinal nerve contains sensory fibers ONLY? a) Dorsal ramus b) Dorsal root c) Spinal nerve trunk B d) Ventral ramus e) Ventral root Mansoura University, Faculty of Medicine 3 Level one, Semester one, AEP 101 Continuous Assessment  Mansoura University AEP 101 Level 1, Semester 1 Faculty of Medicine Continuous Assessment November, 30th, 2023 15. Which one of the following arteries arises directly from aortic arch? a) Ascending pharyngeal b) Inferior thyroid c) Left common carotid C d) Right common carotid e) Right subclavian 16. Which one of the following veins is formed by union of the internal jugular and subclavian veins? a) Brachiocephalic b) Common facial c) External jugular A d) Middle thyroid e) Sigmoid sinus 17. The inner cell mass present in which of the following? a) Blastocyst. b) Morula. c) Oocyte. A d) Two cell stage embryo. e) Zygote 18. Which one of the following is derived from the trophoblast of the blastocyst? a) The blood vessels b) The digestive system c) The fetal half of the placenta C d) The maternal half of the placenta e) The uterine covering 19. A 28-week pregnant young female went to her doctor complaining of vaginal bleeding. The doctor ordered an ultrasound, which revealed that the woman had placenta praevia lateralis. Where is the site of placenta in this case? a) Away from the internal os of the cervix b) Completely covers the internal os of the cervix c) In the lateral wall of the cervical canal A d) Partially covers the external os of the cervix e) Partially covers the internal os of the cervix Mansoura University, Faculty of Medicine 4 Level one, Semester one, AEP 101 Continuous Assessment  Mansoura University AEP 101 Level 1, Semester 1 Faculty of Medicine Continuous Assessment November, 30th, 2023 20. Which one of the following is the right order of steps of neurulation? a) Neural crest- fold-plate b) Neural fold groove-plate c) Neural fold-crest-tube E d) Neural plate- fold-crest e) Neural plate- groove - fold 21. Increased growth of which one of the following results in lateral folding of the embryo? a) Heart tube b) Lateral plate mesoderm c) Neural tube d) Notochord E e) Somites 22. The Vitellointestinal duct (Vitelline duct) connects the midgut with which one of the following structures? a) Allantois b) Amniotic cavity C c) Definitive yolk sac d) Foregut e) Hindgut 23. Which one of the following structures is a constituent of the primary chorionic villus? a) Amnioblast. b) Blood capillaries. c) Extraembryonic coelom. E d) Extraembryonic mesoderm. e) Syncytiotrophoblast. 24. Which one of the following results in formation of conjoined monozygotic twins? a) Amnion not divide completely. b) Chorion not divide completely. c) Embryonic disc divide completely. D d) Embryonic disc not divide completely. e) Placenta not divide completely. Mansoura University, Faculty of Medicine 5 Level one, Semester one, AEP 101 Continuous Assessment  Mansoura University AEP 101 Level 1, Semester 1 Faculty of Medicine Continuous Assessment November, 30th, 2023 25. Late in pregnancy, the placenta barrier is formed of which of the following? a) Cytotrophoblast and endothelium of fetal capillaries. b) Cytotrophoblast and extra embryonic mesoderm c) extra embryonic mesoderm and endothelium of fetal capillaries. E d) Syncytiotrophoblast and cytotrophoblast. e) Syncytiotrophoblast and endothelium um of fetal capillaries 26. Deuterium oxide is used for measurement of which one of the following volumes? a) Extracellular fluid volume. b) Interstitial fluid volume. c) Intracellular fluid volume E d) Plasma volume e) Total body water. 27. How is intracellular fluid volume measured? a) Extracellular fluid volume minus interstitial fluid volume. b) Extracellular fluid volume minus plasma volume. c) Total body water minus extracellular fluid volume. C d) Total body water minus interstitial fluid volume. e) Total body water minus plasma volume. 28. What is the function of peripheral proteins of cell membrane? a) Act as a carrier b) Act as a channel c) Act as a pump d) Act as a receptor. E e) Contribute to cytoskeleton. 29. What is the character of simple diffusion? a) Competition.. b) Energy is needed. c) Needs a carrier. D d) Occurs down an electro-chemical gradient. e) Rate-limited. Mansoura University, Faculty of Medicine 6 Level one, Semester one, AEP 101 Continuous Assessment  Mansoura University AEP 101 Level 1, Semester 1 Faculty of Medicine Continuous Assessment November, 30th, 2023 30. Ligand-gated ion channels are characterized by which one of the following? a) Conduct only one ion b) Opened by changes in cell membrane potential. c) Responsible for generation of motor end plate potential. C d) Responsible for generation of nerve action potential. e) Selective. 31. Gap junctions are mainly present in which one of the following? a) Autonomic ganglia b) Cardiac muscle B c) Central nervous system. d) Peripheral nervous system. e) Skeletal muscle 32. Which one of the following cranial nerves contains parasympathetic fibers? a) Abducent nerve VI. b) Accessory nerve XI. c) Glossopharyngeal IX. C d) Optic II. e) Trochlear IV. 33. Which one of these is a feature of postganglionic neurons in sympathetic nervous system? a) Mainly cholinergic and white in color. b) Myelinated. c) Originating distal to the effector organ. C d) Short e) Type B fibers 34. What is the origin of sympathetic to head and neck? a) TI-T2 segments, b) T3-T4 segments e) T5-T6 segments. A d) T7-T8 segments. e) T9-T10 segments. Mansoura University, Faculty of Medicine 7 Level one, Semester one, AEP 101 Continuous Assessment  Mansoura University AEP 101 Level 1, Semester 1 Faculty of Medicine Continuous Assessment November, 30th, 2023 35. A 38-year-old man did a spinal cord surgery at its lower cervical and upper thoracic segments, after recovery the patient developed Ptosis. Which one of the following is the possible cause for ptosis in this case? a) Paralysis of ciliary muscle b) Paralyses of constrictor pupillae muscle E c) Paralysis of dilatator pupillae muscle d) Paralysis of medial rectus muscle e) Paralysis of upper toral muscles of the eye lids 36. What is the most abundant signaling molecule released from the adrenal medulla a) acetylcholine b) dopamine c) epinephrine C d) norepinephrine e) serotonin 37. Which one of the following is promoted by the sympathetic activity? a) Airway constriction b) Erection of external genitalia c) Pupillary constriction E d) Releasing of GIT sphincters e) Secretion of sweat 38. A 55 years old woman frequently complained of palpitation, headache, sweating and abdominal pain. Laboratory and radiological tests confirmed the presence of adrenal medullary tumor. The excessive epinephrine from adrenal medulla this case may cause a) constriction of both pupils b) contracts the ciliary muscle in the eye c) inhibition of glycogenolysis in liver D d) Mydriasis and relaxation of ciliary muscle e) Stimulation of glycogenesis in liver 39. What is the effect of pelvic nerve Stimulation? a) Contraction of bronchial muscle. b) Contraction of the external anal sphincter. c) Contraction of the internal anal sphincter. E d) Contraction of the internal urethral sphincter. e) Dilatation of the blood vessels of the external genitalia. Mansoura University, Faculty of Medicine 8 Level one, Semester one, AEP 101 Continuous Assessment  Mansoura University AEP 101 Level 1, Semester 1 Faculty of Medicine Continuous Assessment November, 30th, 2023 40. Which one of the following represents a good example for midbrain control over autonomic function? a) Control of the body temperature. b) Hunger sensation c) Increased secretion of saliva and gastric juice even on thinking or seeing of food. d) Ocular reflexes. D e) Vasomotor tone. 41. Sympathetic tone best example is demonstrated in which one of the following sites? a) Blood vessels. b) GIT. c) Heart. A d) Kidney. e) Lung. 42. Which chemical transmitter is released by all preganglionic autonomic neurons? a) Acetylcholine b) Dopamine. e) Epinephrine. A d) Nicotine e) Norepinephrine 43. Hassan, a 45-years-old farmworker was admitted to the emergency department with increased saliva and tear production, diarrhea, nausea, vomiting, small pupils, sweating, muscle tremors, bronchospasm, and confusion with history of using insecticide in the farm. What is the mechanism of action of this insecticide? a) Block the action of choline-esterase enzyme b) Block the cholinergic muscarinic receptors A c) Block the cholinergic nicotinic receptors d) Excessive uptake of Ach by cholinergic neurons e) Inhibits the release of Ach from cholinergic neurons 44. Which one is true about acetylcholine? a) Action at motor end plate is blocked by atropine. b) Action at motor end plate is blocked by small dose nicotine D c) Is released by both pre- & postganglionic sympathetic nerve. d) Is the only neurotransmitter secreted by parasympathetic neurons. e) Synthesis is catalyzed by cholinesterase enzyme. Mansoura University, Faculty of Medicine 9 Level one, Semester one, AEP 101 Continuous Assessment  Mansoura University AEP 101 Level 1, Semester 1 Faculty of Medicine Continuous Assessment November, 30th, 2023 45. What will occur on blocking the alpha adrenergic receptors? a) A fall in the arterial B.P. due to slowing of the heart. b) A reduction in sweat production. e) Constriction of the bronchi. ❌ D d) Failure of mydriasis in emotions. e) Voluntary vasodilation of skeletal muscle blood vessels 46. How norepinephrine is removed at postganglionic sympathetic fibres? a) A demethylation action b) Hydrolyzed by the cholinesterase enzyme. c) Reuptake back into the terminal sympathetic nerve endings. ❌ C d) The action of transaminase enzyme. e) Transformation into epinephrine. 47. Which one of the following has the highest permeability in a resting nerve cell? a) Cl-. b) H+. c) HCO3. ❌ D d) K+. e) Na+. 48. The opening of axon membrane voltage-gated potassium channels is responsible for which part of the action potential? a) Contraction of the post synaptic muscle fiber b) Depolarization of the membrane c) Overshot of the membrane potential. ❌ D d) Repolarization of the membrane e) Signaling vesicular release of neurotransmitters Mansoura University, Faculty of Medicine 10 Level one, Semester one, AEP 101 Continuous Assessment ‫‪Final Exam‬‬ ‫)اﻣﺘﺤﺎن اﻟﻔﺎﻳﻨﺎل(‬  Mansoura University AEP 101 Level 1, Semester 1 Faculty of Medicine Final Assessment 3th , January, 2024 Mansoura University ‫ﺟﺎﻣﻌﺔ اﻟﻤﻨﺼﻮرة‬ Faculty of Medicine ‫ﻛﻠﯿﺔ اﻟﻄﺐ‬ AEP-101 Final Assessment Date: 3th, January, 2024 Level one, Semester one Time allowed: 60 minutes Total marks: 45 marks............... :‫رﻗﻢ اﻟﺠﻠﻮس‬...................................................................... :‫اﻻﺳﻢ‬ Choose a Single Correct Answer: 1. Which one of the following bones belongs to the appendicular skeleton? a) Ribs. b) Scapula. B c) Skull. d) Sternum. e) Vertebrae. 2. Which part of the long lone is responsible for its growth in length? a) Diaphysis b) Endosteum c) Epiphyseal cartilage C d) Metaphysis e) Periosteum 3. Which one of the following is a function of the superficial fascia? a) Excretion of the waste product b) Forms intermuscular septa c) Forms palmer aponeurosis D d) Gives the body rounded appearance e) Help the muscle pump Mansoura University, Faculty of Medicine Level one, Semester one, AEP 101 Final Assessment 1  Mansoura University AEP 101 Level 1, Semester 1 Faculty of Medicine Final Assessment 3th , January, 2024 4. Which one of the following is an example on the biaxial joint? a) Atlantoaxial b) Elbow c) Hip E d) Shoulder e) Wrist 5. Where does the secondary cartilaginous type of joint located? a) Between bones of skull b) Between tibia & fibula D c) Epiphyseal plate of long bones d) Symphysis pubis e) Teeth socket 6. Where is the termination of the female urethra? a) At the vestibule behind the vagina b) At the vestibule in front of the vagina c) In the anterior wall of the vagina B d) In the neck of the urinary bladder e) In the trigon of the urinary bladder 7. The internal urethral sphincter surrounds which one of the following structures? a) Apex of the urinary bladder b) Lower part of the female urethra c) Lower part of the ureter d) Membranous urethra E e) Neck of the urinary bladder Mansoura University, Faculty of Medicine 2 Level one, Semester one, AEP 101 Final Assessment  Mansoura University AEP 101 Level 1, Semester 1 Faculty of Medicine Final Assessment 3th , January, 2024 8. Which part of the alimentary canal receives the opening of the bile duct? a) Cecum b) Duodenum c) Ilium B d) Jejunum e) Rectum 9. The ganglion is a collection of the nerve cells at which of the following sites? a) Inside the cerebellum b) Inside the cerebrum c) Inside the spinal cord d) On the brain meninges E e) Outside the central nervous system 10. Which one of the following cranial nerves arises from outside the brainstem? a) Facial nerve b) Hypoglossal nerve c) Occulomotor nerve d) Optic nerve D e) Vagus nerve 11. Which one of the following structures runs inside the carotid sheath? a) External carotid artery b) Internal jugular vein c) Lingual artery d) Subclavian vein B e) Superior thyroid artery Mansoura University, Faculty of Medicine 3 Level one, Semester one, AEP 101 Final Assessment  Mansoura University AEP 101 Level 1, Semester 1 Faculty of Medicine Final Assessment 3th , January, 2024 12. Bleeding in which layer of the scalp can cause black eye? a) Deep fascia. b) Loose areolar tissue. c) Pericranium. B d) Skin. e) Superficial fascia. 13. The facial artery arises from which one of the following arteries? a) External carotid b) Maxillary c) Posterior auricular A d) Superficial temporal e) Transverse facial 14. At which site the sperms are stored and get mature? a) Ejaculatory duct b) Epididymis B c) Prostate d) Testis e) Vas deferens 15. Which one of the following is a female secondary sex organ? a) Ovary b) Testis c) Ureter E d) Urethra e) Uterus Mansoura University, Faculty of Medicine 4 Level one, Semester one, AEP 101 Final Assessment  Mansoura University AEP 101 Level 1, Semester 1 Faculty of Medicine Final Assessment 3th , January, 2024 16. Azospermia means: a) Abnormal shape of sperms more than 10% b) Abnormal shape of sperms more than 25% c) Absent sperms C d) Dead sperms e) Sperms less than 20 million 17. Corpus luteum secretes which one of the following hormones? a) FSH b) LH c) Oxytocin D d) Progesterone e) Prolactin 18. Which one of the following is the normal site of implantation in the endometrium? a) Ampulla of uterine (fallopian) tube. b) Anterior wall of body of the uterus near the cervix. c) Anterior wall of the cervical canal. D d) Posterior wall of body of the uterus near the fundus. e) Posterior wall of the cervical canal. 19. Which one of the following forms the roof of the yolk? a) Blastocyst b) Epiblast c) Hypoblast C d) Morula e) Trophoblast Mansoura University, Faculty of Medicine 5 Level one, Semester one, AEP 101 Final Assessment  Mansoura University AEP 101 Level 1, Semester 1 Faculty of Medicine Final Assessment 3th , January, 2024 20. In which layer of the uterine wall the placenta is formed? a) Decidua basalis b) Decidua capsularis c) Decidua parietalis A d) Myometrium e) Perimetrium 21. Which one of the following statements is a feature of dizygotic twins? a) Genetically identical but have different finger prints b) Genetically identical even in their finger prints c) Have 2 amnion 1 placenta and 1 chorion E d) Have 2 amnion 1 placenta and 2 chorion e) Have 2 amnion, 2 placentas and 2 chorion 22. Which of the following does characterize the extracellular fluid? a) It contains large amount of phosphates b) It contains large quantities of K c) It contains less amount of HCO3 E d) It contains less quantities of NaCl e) It contains less quantities of proteins 23. Which of the following does characterize the positive feedback control mechanism? a) It is important for regulation of blood glucose level. b) It is important for regulation of body temperature and arterial blood pressure c) It usually disturbs homeostasis and may cause death cycles C d) It usually important for regulation of blood and extracellular fluid volume e) It usually keeps the internal environment constant Mansoura University, Faculty of Medicine 6 Level one, Semester one, AEP 101 Final Assessment  Mansoura University AEP 101 Level 1, Semester 1 Faculty of Medicine Final Assessment 3th , January, 2024 24. Evans blue dye is used for measurement of which one of the following volumes? a) Extracellular fluid volume. b) Interstitial fluid volu me. c) Intracellular fluid volume D d) Plasma volume. e) Total body water. 25. Voltage-gated ion channels are characterized by which one of the following? a) Conduct more than one type of similarly charged ions b) Non-selective. c) Opened by binding of a chemical agent to its receptors. d) Responsible for generation of motor end plate potential. E e) Responsible for g eneration of nerve action potential. 26. Low intracellular Ca+2 ions concentration is maintained by which one of the following processes? a) Facilitated diffusion b) Osmosis C c) Primary active transport d) Simple diffusion. e) Vesicular transport 27. What is the effect of lesion in superior cervical ganglion? a) Anhidrosis on the opposite side of lesion b) Exophthalmos on the opposite of lesion c) Increase sweat secretion. D d) Miosis on the same side of lesion e) Pale and cold skin. Mansoura University, Faculty of Medicine 7 Level one, Semester one, AEP 101 Final Assessment  Mansoura University AEP 101 Level 1, Semester 1 Faculty of Medicine Final Assessment 3th , January, 2024 28. Sympathetic supply to the pelvic viscera causes which one of the following? a) Contraction of external anal sphincter b) Defecation. c) Micturition. E d) Stimulation of seminal fluid and prost atic secretions e) Vasoconstriction of sex organs and their shrinkage 29. Which one of the following characterizes the adrenal medulla? a) It antagonizes the effects of sympathetic stimulation. b) It is a modified parasympathetic ganglion. c) It receives preganglionic nerve supply from the anterior horn cells of the E lower 6 thoracic segments of spinal cord. d) It secrets epinephrine 20% & norepinephrine 80%. e) Its secretion is basal and decreased during sleep. 30. Which one of the following does characterize the resting membrane potential in nerve fibers? ❌ a) It is a passive process only. b) It is caused by selective permeability of the cell and unequal distribution of ions in ICF and ECF c) It is due to diffusion of intracellular protein to outside the nerve fibres. B d) It is due to K diffusion from outside to inside the nerve fibres. e) Its value is normally about 10 mV. Mansoura University, Faculty of Medicine 8 Level one, Semester one, AEP 101 Final Assessment  Mansoura University AEP 101 Level 1, Semester 1 Faculty of Medicine Final Assessment 3th , January, 2024 31. How we could measure the resting membrane potential? a) Put the two electrodes inside the nerve fiber during rest ❌ E b) Put the two electrodes outside the nerve fiber during rest c) Put the two electrodes outside the nerve fiber during stimulation of nerve fiber by strong stimulus d) Put the two electrodes outside the nerve fiber during stimulation of nerve fiber by weak stimulus e) Use a special voltmeter with one microelectrode inside and the 2nd outside the nerve fibers 32. The hyperpolarization phase of the action potential is due to which one of the following? a) Closure of chloride channels. b) Delayed closure of voltage gated K channels. c) Opening of chloride channels. ❌ B d) The closure of resting Na channels. e) The opening of voltage gated sodium channels. 33. The action potential of a neuron is characterized by which one of the following? a) Declines in amplitude as it moves along the axon. b) Is initiated by efflux of Na ions. ❌ E c) Is not associated with excitability changes in the axon. d) Is not associated with movement of Na or K across the cell membrane. e) Is terminated by efflux of K ions. Mansoura University, Faculty of Medicine 9 Level one, Semester one, AEP 101 Final Assessment  Mansoura University AEP 101 Level 1, Semester 1 Faculty of Medicine Final Assessment 3th , January, 2024 34. Local anesthetic drugs take effect by which one of the following mechanisms? a) Blocking neurotransmitter release from neuronal terminals b) Blocking nicotinic acetylcholine receptors at the synapse c) Inhibiting the action of acetylcholinesterase in the synapse. ❌ E d) Internal block of axonal voltage-gated potassium channels. e) Internal block of axonal voltage-gated sodium channels. 35. Which one of the following nerve fibres is typically unmyelinated? a) Aβ fibers b) Aα fibres c) Aδ fibres E ❌ d) B fibres e) C fibres 36. What effect does myelination have on axons? a) It allows them to conduct signals significantly faster. b) It prevents cross talk between adjacent axons c) It protects them from damage ❌ A d) It slows the propagation of signals along them c) Responsible for regeneration of the nerve. 37. The most common site for the electrical synapses in C.N.S is which one of the following? a) Cerebral cortex. b) Hippocampus. B c) Inner ear "cochlea". d) Raphi magnus nuclei. e) Reticular activating system. Mansoura University, Faculty of Medicine 10 Level one, Semester one, AEP 101 Final Assessment  Mansoura University AEP 101 Level 1, Semester 1 Faculty of Medicine Final Assessment 3th , January, 2024 38. Turbulent blood flow is characterized by which one of the following? a) Blood flow is streamline b) Eddy currents are present c) Is silent ❌ B d) Reynold's number is