Q. No.The releasing hormones and inhibitory hormones secreted by hypothalamus reach anterior pituitary by:
1.
portal circulation
2.
axons
3.
general circulation
4.
lymph
Which hormone is antagonistic to insulin regarding its effects on carbohydrate, fat and protein metabolism?
| 1. | Glucagon | 2. | Growth hormone |
| 3. | Melatonin | 4. | Cortisol |
Match each item in Column I [Hormone] with one in Column II [Chemical class] and select your answer from the codes given:
|
Column I |
|
Column II |
|
|
A. |
ACTH |
a. |
Peptide |
|
B. |
Estradiol |
b. |
Steroid |
|
C. |
Thyroxine |
c. |
Amino-acid derived |
|
D. |
Epinephrine |
d. |
Iodothyronine |
Codes:
| A | B | C | D | |
| 1. | a | b | c | d |
| 2. | a | b | d | c |
| 3. | b | a | d | c |
| 4. | b | a | c | d |
Graves’ disease is characterized by all the following except:
| 1. | Exopthalmos | 2. | Tachycardia |
| 3. | Toxic goiter | 4. | Weight gain |
Thymus:
| I: | is located ventral to the heart/aorta |
| II: | plays a major role in differentiation of T-lymphocytes |
| III: | promotes production of antibodies |
| IV: | enlarges with age |
1. Only I, II and III are correct
2. Only I, III and IV are correct
3. Only II, III and IV are correct
4. I, II, III and IV are correct
The adrenal medulla is functionally related to:
1. Hypothalamic-hypophyseal portal system
2. Parasympathetic neural system
3. Sympathetic neural system
4. Somatic neural system
The function of aldosterone is mainly:
| 1. | reabsorption of sodium and water at distal renal tubules |
| 2. | growth of axial, pubic and facial hair |
| 3. | vasodilation leading to polyuria |
| 4. | mobilization of metabolites for energy |
In males, androgens like testosterone secreted by Leydig cells in testes do not:
| 1. | regulate the development, maturation and functions of the male accessory sex organs |
| 2. | control the development and regulation of the secondary sexual characters |
| 3. | play a major stimulatory role in the process of spermatogenesis |
| 4. | produce catabolic effects on protein and carbohydrate metabolism |
The pair of glands that are composed of follicles and stromal tissue is:
| 1. | Pancreas and adrenal | 2. | Thyroid and pituitary |
| 3. | Ovary and thyroid | 4. | Ovary and testis |
The functions of glucagon do not include:
1. Glycogenolysis
2. Gluconeogenesis
3. Increased cellular glucose uptake
4. Decreased cellular glucose utilization
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