Topics:
Animal Physiology, Animal Refresher
Match: Hormones and Their Sources/Actions
View Complete Answer & Explanation
Question (English)
Match the column:
| TABLE-I | TABLE-II |
|---|---|
| 1) Testosterone | a) Hunger hormone |
| 2) Epinephrine | b) Milk let-down |
| 3) Leptin | c) Adrenal medulla |
| 4) Ghrelin | d) Kidney |
| 5) Erythropoietin | e) Leydig cells |
| 6) Oxytocin | f) Satiety hormone |
- 1-e, 2-c, 3-f, 4-a, 5-d, 6-b ✓ Correct
- 1-e, 2-c, 3-a, 4-f, 5-d, 6-b
- 1-d, 2-c, 3-f, 4-a, 5-e, 6-b
- 1-e, 2-b, 3-f, 4-a, 5-d, 6-c
Explanation:
Correct Answer: 1-e, 2-c, 3-f, 4-a, 5-d, 6-b
Explanation of Each Match
- 1-e) Testosterone → Leydig cells: Testosterone is synthesized and secreted by Leydig cells (interstitial cells) of the testes, under stimulation by LH. It promotes male secondary sexual characteristics and libido.
- 2-c) Epinephrine → Adrenal medulla: Epinephrine (adrenaline) and norepinephrine (catecholamines) are secreted by the adrenal medulla. They are 'fight or flight' (emergency) hormones.
- 3-f) Leptin → Satiety hormone: Leptin is secreted by adipose tissue and acts as the 'satiety hormone' — it suppresses appetite and increases metabolic rate, signaling adequate fat stores to the hypothalamus.
- 4-a) Ghrelin → Hunger hormone: Ghrelin is produced by the GIT (stomach) and is known as the 'hunger hormone' — it stimulates appetite and promotes fat storage. It rises before meals and falls after eating.
- 5-d) Erythropoietin → Kidney: Erythropoietin (EPO) is produced primarily by peritubular cells of the kidney in response to hypoxia. It stimulates RBC production in bone marrow.
- 6-b) Oxytocin → Milk let-down: Oxytocin (secreted by posterior pituitary) is the 'milk let-down hormone' — it causes contraction of myoepithelial cells around mammary alveoli, ejecting milk into ducts. It is released by suckling and cervical stretch.
