ENDOCRINE part 1
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Questions and Answers

Bradykinin synthesises which of the following ?

  • CCK
  • EPO
  • Nitric Oxide (correct)
  • Somatostatin
  • Which type of GPCR does Angiotensin II most commonly act via ?

  • Gq (correct)
  • Gi
  • Gs
  • Gp
  • The posterior pituitary is divided into how many segments ?

  • 1
  • 2 (correct)
  • 3
  • 4
  • Which layer of the adrenal cortex produces cortisol?

    <p>Zona fasciculata</p> Signup and view all the answers

    What is the primary hormone produced by the Zona glomerulosa?

    <p>Aldosterone</p> Signup and view all the answers

    What stimulates the biosynthesis of aldosterone in the Zona glomerulosa?

    <p>Angiotensin II</p> Signup and view all the answers

    Which adrenal hormone is involved in mineralocorticoid activity?

    <p>Aldosterone</p> Signup and view all the answers

    In which layer of the adrenal cortex is androgen produced ?

    <p>Zona reticularis</p> Signup and view all the answers

    What are the main adrenal androgens?

    <p>DHEA and androstenedione</p> Signup and view all the answers

    What is the consequence of too much aldosterone?

    <p>Hypertension and hypokalemia</p> Signup and view all the answers

    In which zone of the adrenal gland is glucocorticoid excess observed?

    <p>Zona fasciculata</p> Signup and view all the answers

    What hormone is released by adrenal medullary cells in response to stress?

    <p>Adrenaline</p> Signup and view all the answers

    Which disease is characterised by hormonal overproduction in the Zona glomerulosa of the adrenal glands?

    <p>Conn's syndrome</p> Signup and view all the answers

    Where is thyrotropin releasing hormone (TRH) produced?

    <p>Hypothalamus</p> Signup and view all the answers

    The thyroid gland is formed from thickening of what ?

    <p>Endoderm</p> Signup and view all the answers

    Eicosanoids are derived from what ?

    <p>Fatty acids</p> Signup and view all the answers

    Which of the following is true in regards to receptor antagonists ?

    <p>Stimulates up-regulation of receptors</p> Signup and view all the answers

    Which of the following is true ?

    <p>GH is highest during the night and cortisol is highest during the morning</p> Signup and view all the answers

    Which of the following is a sub-section of the anterior pituitary gland ?

    <p>Pars intermedia</p> Signup and view all the answers

    What is the primary function of the hormones stored in the posterior pituitary gland?

    <p>Conservation of body water</p> Signup and view all the answers

    Which nuclei give rise to terminals that are found in the posterior pituitary gland?

    <p>Supraoptic and paraventricular nuclei</p> Signup and view all the answers

    Which of the following reactions does aromatase catalyse in steroidogenesis ?

    <p>Conversion of androstenedione into estrone</p> Signup and view all the answers

    Which hormone is formed from monodeiodination of T4 in both the thyroid and peripheral tissues?

    <p>T3</p> Signup and view all the answers

    What is the main second messenger involved in the mechanism of action of TSH receptors to stimulate thyroid hormone release?

    <p>cAMP</p> Signup and view all the answers

    Which system does thyroid hormone mimic the actions of?

    <p>Sympathetic nervous system</p> Signup and view all the answers

    What is the primary function of progesterone during the menstrual cycle?

    <p>Inhibits uterine contractions</p> Signup and view all the answers

    What is the typical duration of the follicular/proliferative phase of the menstrual cycle?

    <p>14-21 days</p> Signup and view all the answers

    What is the role of FSH during the follicular/proliferative phase of the menstrual cycle?

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

    FSH stimulates which of the following ?

    <p>Granulosa cells in women</p> Signup and view all the answers

    Which cells produce parathyroid ?

    <p>Chief cells</p> Signup and view all the answers

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