Loading....
Coupon Accepted Successfully!

Physiology

Open Flashcards

Kidney

Question
12 out of 26
 

In which of the following forms the Anti diuretic hormone (ADH) is circulated in plasma? (DNB June-2009)



A Bound to neurophysin — I

B Bound to neurophysin —II

C Bound to plasma albumin

D Free form

Ans. B Bound to neurophysin —II

The hormones of the post-pituitary gland (ADH and oxytocin) are synthesised in the cell bodies of magnocellular neurons in the supraoptic and paraventricular nuclei. Q

  1. Vasopressin and oxytocin each have a characteristic neurophysin ass. With them in the granules in the neurons that secrete them, neurophysin II in case of vaspressin and neurophysin I in case of oxytocin. .
  2. ADH secretion is enhanced by angiotensin II, prostaglandins, histamine, neuropeptide Y and Ach and is inhibited by GABA and ANP.

ADH responsive water channel is collecting ducts of kidney is aquaporin-2 Q

Kidney Flashcard List

26 flashcards
1)
2)
3)
4)
5)
6)
7)
8)
9)
10)
11)
12)
13)
14)
15)
16)
17)
18)
19)
20)
21)
22)
23)
24)
25)
26)