Endocrine Glands Quiz

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Questions and Answers

What is the name of the cells that synthesize and secrete Parathormone (PTH) in the parathyroid glands?

  • Oxyphil cells
  • Chief or Principal Cells (correct)
  • Thyroid cells
  • Adrenal cells

What is the primary function of the parathyroid glands?

  • Regulating blood pressure
  • Regulating body temperature
  • Regulating blood calcium levels (correct)
  • Regulating blood sugar levels

What is the name of the inner core of the adrenal gland that secretes catecholamines?

  • Parathyroid gland
  • Adrenal medulla (correct)
  • Adrenal cortex
  • Thyroid gland

What is the name of the outermost layer of the adrenal cortex where cells are arranged in round clusters?

<p>Zona Glomerulosa (B)</p> Signup and view all the answers

What are the two types of endocrine tissue with different embryological origins found in the adrenal gland?

<p>Adrenal cortex and adrenal medulla (A)</p> Signup and view all the answers

What is the name of the hormone secreted by the parathyroid glands that regulates blood calcium levels?

<p>Parathormone (PTH) (C)</p> Signup and view all the answers

What is the name of the layer of the adrenal cortex where cells are arranged in parallel columns?

<p>Zona Fasciculata (D)</p> Signup and view all the answers

What is the name of the cells in the parathyroid glands that do not secrete Parathormone (PTH)?

<p>Oxyphil cells (D)</p> Signup and view all the answers

What is the outermost layer of the adrenal gland?

<p>Fibrous capsule (B)</p> Signup and view all the answers

What is the function of the glucocorticoids secreted by the adrenal cortex?

<p>Regulating immune response (B)</p> Signup and view all the answers

What is the primary function of the parathyroid hormone (PTH) secreted by the parathyroid glands?

<p>Regulation of blood calcium levels (B)</p> Signup and view all the answers

What is the characteristic of the adrenal cortex?

<p>It is divided into three histological zones (C)</p> Signup and view all the answers

What is the characteristic of the oxyphil cells in the parathyroid glands?

<p>They have eosinophilic cytoplasm and do not secrete PTH (B)</p> Signup and view all the answers

What is the location of the adrenal glands?

<p>On the upper pole of each kidney (C)</p> Signup and view all the answers

What is the characteristic of the chief cells in the parathyroid glands?

<p>They have pale pink cytoplasm and secrete PTH (B)</p> Signup and view all the answers

What is the characteristic of the adrenal medulla?

<p>It is an inner core of the adrenal gland that secretes catecholamines (D)</p> Signup and view all the answers

What percentage of Chromophobes cells are present in the Anterior Pituitary?

<p>50% (D)</p> Signup and view all the answers

Which type of cells in the Anterior Pituitary secrete GH and Prolactin?

<p>Acidophils (A)</p> Signup and view all the answers

What is the name of the structures in the Posterior Pituitary that store hormones?

<p>Herring bodies (D)</p> Signup and view all the answers

What is the function of the cells synthesizing and transporting hormones from the hypothalamus to the Posterior Pituitary?

<p>Neurons (C)</p> Signup and view all the answers

What is the percentage of Basophils present in the Anterior Pituitary?

<p>15% (C)</p> Signup and view all the answers

Which hormone is secreted by the cells called somatotrophs?

<p>GH (B)</p> Signup and view all the answers

What type of cells are found in the adrenal medulla?

<p>Chromaffin cells (D)</p> Signup and view all the answers

What is the function of the islets of Langerhans in the pancreas?

<p>Regulation of blood sugar levels (C)</p> Signup and view all the answers

What is the layer of the adrenal gland where sex steroids are produced?

<p>Zona Reticularis (A)</p> Signup and view all the answers

What is the name of the hormone produced by alpha cells in the islets of Langerhans?

<p>Glucagon (A)</p> Signup and view all the answers

What is the characteristic of the cells in the adrenal medulla?

<p>Granular, lightly basophilic cytoplasm (D)</p> Signup and view all the answers

What is the name of the hormone produced by PP cells in the islets of Langerhans?

<p>Pancreatic polypeptide (C)</p> Signup and view all the answers

What is the main characteristic of endocrine glands?

<p>They are responsible for the synthesis and secretion of hormones (C)</p> Signup and view all the answers

What is the function of the parenchymal cells in endocrine glands?

<p>To discharge hormones into the interstitial space (D)</p> Signup and view all the answers

What is the composition of the endocrine glands?

<p>Islands of secretory epithelial cells and supporting connective tissue (C)</p> Signup and view all the answers

How do hormones disseminate throughout the body?

<p>Through the bloodstream (C)</p> Signup and view all the answers

What is the function of the stroma in endocrine glands?

<p>To filter blood and lymphatic capillaries (C)</p> Signup and view all the answers

What is the characteristic of the cells of the endocrine system?

<p>Large nucleus and abundant mitochondria (B)</p> Signup and view all the answers

What is the unique characteristic of the thyroid gland?

<p>It stores inactive hormone in large quantities (C)</p> Signup and view all the answers

What type of cells produce Iodine containing hormones in the thyroid gland?

<p>Follicular cells (C)</p> Signup and view all the answers

What is the function of the parafollicular cells in the thyroid gland?

<p>To secrete calcitonin (C)</p> Signup and view all the answers

What is the shape of the thyroid follicles?

<p>Spherical (B)</p> Signup and view all the answers

What is the role of the follicular cells when they are actively synthesizing hormone?

<p>They become columnar (D)</p> Signup and view all the answers

What is the function of the colloid in the thyroid follicles?

<p>It stores inactive hormone (A)</p> Signup and view all the answers

What is the primary function of the pituitary gland?

<p>Production of hormones that regulate growth (B)</p> Signup and view all the answers

What type of endocrine system is scattered throughout an extensive epithelium?

<p>Diffuse endocrine system (D)</p> Signup and view all the answers

What is the location of the pituitary gland?

<p>At the base of the brain in a bony cavity (D)</p> Signup and view all the answers

What is the function of the anterior pituitary?

<p>Production of hormones that regulate growth and development (C)</p> Signup and view all the answers

What is the name of the part of the pituitary gland that develops from oral mucosa?

<p>Adenohypophysis (C)</p> Signup and view all the answers

What is the name of the hormone produced by the anterior pituitary that stimulates the thyroid gland?

<p>Thyroid-stimulating hormone (TSH) (D)</p> Signup and view all the answers

What is the name of the part of the pituitary gland that develops from neural tissue?

<p>Neurohypophysis (B)</p> Signup and view all the answers

What is the function of growth hormone (GH) produced by the anterior pituitary?

<p>Regulation of growth and development (B)</p> Signup and view all the answers

What is the name of the hormone produced by the anterior pituitary that stimulates the adrenal glands?

<p>Adrenocorticotrophic hormone (ACTH) (B)</p> Signup and view all the answers

What is the name of the bony cavity where the pituitary gland is located?

<p>Sella turcica (C)</p> Signup and view all the answers

What does the Greek noun 'teras' mean?

<p>A type of monster (B)</p> Signup and view all the answers

What are the four categories of teratogens?

<p>Infectious agents, chemical agents, physical agents, and genetic (B)</p> Signup and view all the answers

What is an example of a viral infectious agent that can cause birth defects?

<p>All of the above (D)</p> Signup and view all the answers

What is the effect of ionizing radiation on the embryo or fetus?

<p>It produces different types of birth defects depending on the dose, duration of exposure, and stage of development (B)</p> Signup and view all the answers

What is an example of a genetic cause of birth defects?

<p>All of the above (D)</p> Signup and view all the answers

What is the term for the study of birth defects?

<p>Teratology (C)</p> Signup and view all the answers

What is a teratogen?

<p>A substance that induces or amplifies abnormal embryonic or fetal development and causes birth defects (B)</p> Signup and view all the answers

What is an example of a maternal condition that can cause birth defects?

<p>Hormones (A)</p> Signup and view all the answers

What is the result of an abnormal developmental process that occurs during the formation of an organ or a larger region of the body?

<p>Malformation (B)</p> Signup and view all the answers

What is the name of the syndrome that occurs due to trisomy of sex chromosomes?

<p>Klinefelter Syndrome (C)</p> Signup and view all the answers

What is the term for a morphologic defect that occurs due to exposure to teratogens or an interference with an originally normal developmental process?

<p>Disruption (A)</p> Signup and view all the answers

What is the effect of large doses of radiation on the occurrence of mutations?

<p>It increases the occurrence of mutations (B)</p> Signup and view all the answers

What is an example of a congenital anomaly caused by a mutation?

<p>Fetal alcohol syndrome (D)</p> Signup and view all the answers

What is the period during which most malformations occur?

<p>3rd-8th weeks of gestation (B)</p> Signup and view all the answers

What is the term for a change in the function of a gene?

<p>Mutation (B)</p> Signup and view all the answers

What is the characteristic of a mutation?

<p>It is permanent (B)</p> Signup and view all the answers

What is the study of birth defects called?

<p>Teratology (A)</p> Signup and view all the answers

What type of teratogens can cause physical or functional defects in the human embryo or fetus?

<p>All of the above (D)</p> Signup and view all the answers

What type of radiation is a potent teratogen?

<p>Ionizing radiation (A)</p> Signup and view all the answers

What is an example of a numerical chromosomal abnormality?

<p>Trisomy 21 (B)</p> Signup and view all the answers

What is the term for substances that may produce physical or functional defects in the human embryo or fetus?

<p>Teratogens (D)</p> Signup and view all the answers

What is an example of an infectious agent that can cause birth defects?

<p>All of the above (D)</p> Signup and view all the answers

What is the term for the study of the causes and development of monsters or abnormal formations?

<p>Teratology (B)</p> Signup and view all the answers

What is an example of a maternal condition that can cause birth defects?

<p>Hormonal imbalance (D)</p> Signup and view all the answers

What is the term for the presence of an extra sex chromosome, resulting in a genetic disorder?

<p>Klinefelter Syndrome (D)</p> Signup and view all the answers

What type of chromosomal abnormality involves the rearrangement of genetic material within a chromosome?

<p>Inversion (B)</p> Signup and view all the answers

What is the term for a morphologic defect of an organ or part of an organ that results from an intrinsically abnormal developmental process?

<p>Malformation (A)</p> Signup and view all the answers

What is the term for a morphologic defect of an organ or part of an organ that results from exposure to teratogens or interference with a normal developmental process?

<p>Disruption (B)</p> Signup and view all the answers

What is the term for a permanent change in the DNA sequence of a gene?

<p>Mutation (D)</p> Signup and view all the answers

What is the term for a congenital anomaly characterized by a cleft in the lip and/or palate?

<p>Cleft Lip and Palate (D)</p> Signup and view all the answers

What is the term for a congenital anomaly characterized by the absence of a major portion of the brain?

<p>Anencephaly (B)</p> Signup and view all the answers

What is the term for a congenital anomaly characterized by the protrusion of the intestine through the abdominal wall near the belly button?

<p>Omphalocele (D)</p> Signup and view all the answers

What is the name of the syndrome that occurs due to trisomy of sex chromosomes?

<p>Klinefelter Syndrome (C)</p> Signup and view all the answers

What is the term for a mutation that involves a loss or change in the function of a gene?

<p>Mutation (B)</p> Signup and view all the answers

What is the term for a morphologic defect of an organ or part of an organ that results from an intrinsically abnormal developmental process?

<p>Malformation (D)</p> Signup and view all the answers

What is the term for a morphologic defect of an organ or part of an organ that results from exposure to teratogens or interference with an originally normal developmental process?

<p>Disruption (C)</p> Signup and view all the answers

What is the term for a condition caused by alcohol consumption during pregnancy?

<p>Fetal alcohol syndrome (D)</p> Signup and view all the answers

What is the term for a congenital anomaly that occurs when the embryo's neural tube fails to close properly?

<p>Spina bifida (A)</p> Signup and view all the answers

What is the term used to describe the study of birth defects?

<p>Teratology (A)</p> Signup and view all the answers

What category of teratogens includes viruses such as Rubella and cytomegalovirus?

<p>Infectious agents (C)</p> Signup and view all the answers

What is the effect of ionizing radiation on the developing embryo or fetus?

<p>It can produce any type of birth defect (D)</p> Signup and view all the answers

What is the term used to describe a chromosomal abnormality in which there is an extra copy of chromosome 21?

<p>Trisomy 21 (B)</p> Signup and view all the answers

What is the category of teratogens that includes maternal health conditions?

<p>Maternal health (C)</p> Signup and view all the answers

What is the term used to describe the study of the causes and mechanisms of birth defects?

<p>Teratology (C)</p> Signup and view all the answers

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