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 Multiple Choice QuestionsMultiple Choice Questions

141.

GnRH, a hypothalamic hormone, needed in reproduction, acts on

  • Anterior pituitary gland and stimulates secretion of LH and oxytocin

  • Anterior pituitary gland and stimulates secretion of LH and FSH

  • Posterior pituitary gland and stimulates secretion of oxytocin and FSH

  • Posterior pituitary gland and stimulates secretion of oxytocin and FSH


B.

Anterior pituitary gland and stimulates secretion of LH and FSH

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142.

Hypersecretion of Growth Hormone in adults does not cause further increase in height, because

  • Growth Hormone becomes inactive in adults

  • Epiphyseal plates close after adolescence

  • Bones loose their sensitivity to Growth Hormone in adults

  • Bones loose their sensitivity to Growth Hormone in adults


B.

Epiphyseal plates close after adolescence

Epiphyseal plate is responsible for the growth of bone which close after adolescence so hypersecretion of growth hormone in adults does not cause further increase in height.

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143.

Match the following Columns.

Column I Column II
A. Hyperthyroidism 1. Myxedema
B. Hyposecretion of glucocorticoids 2. Addison's disease
C. Hypothyroidism- I 3. Increased metabolic rate
D. Hyperparathyroidism

4. Cushing's syndrome

5. Kidney stone

  • A- 3; B- 2; C- 1; D- 5

  • A- 3; B- 4; C- 1; D- 2

  • A- 1; B- 4; C- 3; D- 2

  • A- 1; B- 2; C- 3; D- 5


A.

A- 3; B- 2; C- 1; D- 5

Column I Column II
A.  Hyperthyroidism 3. Increased metabolic rate
B. Hyposecretion of glucocorticoids 2. Addison's disease
C. Hypothyroidism- I 1. Myxedema
D. Hyperparathyroidism 5. Kidney stone

144.

Which of the following is an amino acid derived hormone?

  • Epinephrine

  • Ecdysone

  • Estriol

  • Estradiol


A.

Epinephrine

Epinephrine is derived from tyrosine amino acid by the removal of the carboxyl group. It is a catecholamine.


145.

Which of the following gastric cells indirectly help in erythropoiesis?

  • Chief cells

  • Mucous cells

  • Parietal cells

  • Goblet cells


C.

Parietal cells

Parietal or oxyntic cell is a source of HCl and intrinsic factor. HCl converts iron present in diet from ferric to ferrous form so that it can be absorbed easily and used during erythropoiesis.

Intrinsic factor is essential for the absorption of vitamin B12 and its deficiency causes pernicious anaemia.


146.

A decrease in blood pressure/volume will not cause the release of

  • Renin

  • Atrial Natriuretic Factor

  • Aldosterone

  • Aldosterone


B.

Atrial Natriuretic Factor

A decrease in blood pressure / volume stimulates the release of renin, aldosterone, and ADH while increase in blood pressure / volume stimulates the release of Atrial Natriuretic Factor (ANF) which cause vasodilation and also inhibits RAAS (Renin Angiotensin Aldosterone System) mechanism that decreases the blood volume/pressure.

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