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M.C.Q Endocrine system By: Prof Dr Somaya 1- All the following are pure endocrine glands except : a- pituitary gland b- adrenal gland c-pineal gland d- pancreas 2- The master of the endocrine glands is : a- pituitary gland b- adrenal gland c- thyroid gland d- parathyroid gland 3- All the following are criteria of chromophils of pars distalis except : a- They form 50% of the cells of pars distalis b-They are larger than chromophobes c- They have few granules seen only by E.M d- They are formed of acidophilis and basophilis 4- Somatotrophs can be stained by : a- Orcein stain b- Toludine blue c- Orange G stain d- Erythrocin stain. 5- Somatotrophs secrete : a- Melatonin b- Growth hormone c- Calcitonin d- Prolactin 6- Mammotrophs secrete : a- Melatonin b- Growth hormone c- Calcitonin d- Prolactin 7- All the following are types of basophils except : a- Corticotrophs b- Gonadotrophs c- Mammotrophs d- Thyrotrophs 8- Gonadotrophs secrete : a- Growth hormone b- FSH & LH c- ACTH d- Lactogenic hormone 9- Thyrotrophs secrete : a- Thyroid stimulating hormone b- T3 &T4 c- Calcitonin d- Vasopressin 10- Mammotrophs can be stained by : a- Orcein stain b- Sudan III stain. c- Orange G stain d- Erythrocin stain 11) Thyrotrophs can be stained by: a-Orcein stain b-Orange G stain c-PAS d-Erythrocin stain 12) Chromophobes of the ant.pitutary are considered as: a-Nerve cells b-Neuroglia cells c-Stem cells d-Hormone storing cells 13) Para follicular cells of the thyroid gland secrete a-T3 &T4 b-Thyroid stimulating hormone c-Oxytocin d-calcitonin 14) A patient is complaining of spastic contraction of the skeletal muscles(tetany)-this condition is due to: a-Hypofunction of thyroid gland b-Hypofunction of parathyroid gland c-hyperfunction of parathyroid gland d-hyperfunction of thyroid gland 15) The pituitary gland is the master of the endocrine glands because: a-It is the largest endocrine gland b-It secretes many hormones c-It secretes hormones which control the activity of other glands d-It is present inside the skull 16) Chromophilis of the anterior pituitary include: a-Chromaffin cells and Ganglion cells b-Acidophils and basophils c-Nerve cells and neuroglia cells d-Nerve cells and Herring bodies 17) Acidophilis of the anterior pituitary includes: a. Somatotrophs & mammotrophs. b. Gonadotrophs & corticotrophs. c-Thyrotrophs & corticotrophs. d- Somatotrophs & thyrotrophs. 18) Pars nervosa of the pituitary gland contains all the following structures except: a- Nerve cells. b- Nerve fibers. c- Herring bodies. d- Pituicytes. 19) Herring bodies are : a- Degenerated nerve cells. b- Degenerated nerve fibers. c- Accumulated secretion of anterior pituitary. d- Accumulated secretion of hypothalamus. 20) The supraoptic & paraventricular nuclei of hypothalamus secrete: a- ADH & oxytocin. b- ADH & aldosterone. c-Oxytocin & ACTH. d- ADH & ACTH 21) Zona glomerulosa secretes: a- Adrenaline & nor adrenaline. b- Mineralocorticoids. c- Glucocorticoids. d- Sex hormones. 22) Zona fasiculata secretes: a- Adrenaline & nor adrenaline. b- ACTH. c- Cortisone & cortisole.. d- Sex hormones 23) Zona reticularis secretes: a- Adrenaline & nor adrenaline. b- Melatonin.. c- Glucocorticoids & androgens.. d- ACTH. 24) Adrenal medulla secretes: a- Adrenaline & nor adrenaline. b- Mineralocorticoids. c- Glucocorticoids. d- Sex hormones 25) Pineal body secrete: a- Adrenaline & nor adrenaline. b- Melatonin.. c- Glucocorticoids & androgens d- FSH & LH. 26) Adenohypophysis consists of the following parts except: a- Pars distalis. b- Pars tuberalis. c- Pars intermedia. d- Pars nervosa. 27) Neurohypophysis consists of the following parts except: a- Pars tuberalis. b- Pars nervosa. c- Neural stalk. d- Median eminence. 28) Posterior lobe of the pituitary gland includes the following structures except: a- Pars tuberalis. b- Pars nervosa. c- Neural stalk. d- Pars intermedia 29) Corticotrophs secrete : a- ACTH & MSH. b- Calcitonin. c- FSH & LH. d- Cortisone & cortisole. 30) Deficiency of vasopressin leads to : a- Diabetes mellitus. b- Diabetes insipidus. c- Tetany. d- Cretinism. 31) Spongiocytes are the cells of : a- Zona glomerulosa. b- Zona fasiculata. c- Zona reticularis. d- Adrenal medulla. 32) Oxyphil cells of the parathyroid gland are characterized by all the following except: a- They are fewer in number than chief cells. b- They have acidophilic cytoplasm. c- They may be degenerated chief cells. d- They are present in young children below 7 years. 33) The cells in adrenal medulla include: a-Chromaffin cells and Ganglion cells. b-Acidophils and basophils. c-Nerve cells and neuroglia cells. d-Somatotrophs & mammotrophs. 34) Brain sand in X- ray films is a characteristic feature of : a- Pituitary gland. b- Pineal gland. c- Thyroid gland. d- Parathyroid gland. 35) ACTH is secreted by : a- Acidophilis of pars distalis. b- Basophiis of pars distalis. c- Suprarenal cortex. d- Supraoptic & paraventricular nuclei. Best wishes Prof Dr Somaya Some more questions from Dr Noha: Which of the following cells can be considered one of the acidophils present in the pituitary gland? A B C D Thyrotrophs Gonadotrophs Corticotropes Lactotropes Which of the following is secreted by islets of Langerhans: A Lysozyme B Gastrin C T3 & T4 D Insulin. Thyroid follicular cells are different from MOST endocrine cells in that they: A Store their product in the extracellular space. B Have numerous small vesicles. C Have abundant RER. D Respond to a specific pituitary hormone. Aldosterone is secreted from which layer of the adrenal gland? a) Zona glomerulosa. b) Zona reticularis. c) Zona fasciculata. d) Adrenal medulla. Which of the following cells contain an extensive amount of sER: A Fibroblasts B C D Spongiocytes Neurons Smooth muscles Which statement concerning basophils of the pituitary gland is CORRECT? A B C D hormone. They outnumber acidophils. They include thyrotrope, corticotrope and mammotrope. They are larger than acidophils in size. They include a group of cells that secrete growth Which of the following statements is CORRECT concerning paracrine regulation of pancreatic cells? A B C D Somatostatin inhibits insulin and glucagon secretion. Insulin stimulates glucagon secretion. Glucagon inhibits insulin secretion. Glucagon inhibits somatostatin secretion. Best wishes Dr Noha A Makhlouf