Regulations

Question 1

When ADH/vasopressin is secreted?

Answer 1

When blood or body fluid volume is low

Question 2

ADH is supressed by……….

Answer 2

Diuretics like coffee and alcohol

Question 3

Describe the role of ADH as vasoconstrictor in regulation of kidney function.

Answer 3

Increases blood pressure and GFR

Question 4

How ADH prevents water loss in urine when blood volume is low.

Answer 4

Stimulate reabsorption of NaCl from DCT, collecting duct

Question 5

Full form of RAAS.

Answer 5

Renal-Angiotensin-Aldosterone system

Question 6

RAAS(multihormonal) is secreted by?

Answer 6

JGA

Question 7

When RAAS is secreted?

Answer 7

When B.P, GFR and Filtrare formed is low

Question 8

Which cells secrete renin?

Answer 8

JG cells

Question 9

Name the components of JGA

Answer 9

Macula Densa-epithelium of DCT
JG cells- modified smooth muscle of Bowmans capsule

Question 10

Angiotensinogen(———–)=Angiotensinogen -1(———–)=Angiotensinogen-2

Answer 10

Renin,ACE(Angiotensin converting enzyme)

Question 11

How Angiotensinogen-2 stimulates Adrenal gland?
And PCT?

Answer 11

Stimulates adrenal cortex to secrete aldosterone and increases conditional reabsorption of of sodium ion and water in DCT

Increases reabsorption of sodium chloride and water

Question 12

Full form of ANF

Answer 12

Atrial natriuretic factor

Question 13

When ANF releases?

Answer 13

When B.P. increases

Question 14

From where ANF is secreted?

Answer 14

Atria of heart

Question 15

Which two hormones are inhibited by ANF?

Answer 15

Raas and ADH

Question 16

Which hormone works as vasodilator

Answer 16

ANF