Control of extracellular fluid osmolarity and extracellular fluid volume.

Question 1

Control of extracellular fluid osmolarity and extracellular fluid volume - 1

Answer 1

ADH

Question 2

Control of extracellular fluid osmolarity and extracellular fluid volume - 2

Answer 2

RAAS

Question 3

Control of extracellular fluid osmolarity and extracellular fluid volume - 3

Answer 3

ANP

Question 4

Control of extracellular fluid osmolarity and extracellular fluid volume - 4

Answer 4

thirst mechanism

more thirst = detected by osmoreceptors

more water intake
- diluted ECF
- less osmolarity

Question 5

Control of extracellular fluid osmolarity and extracellular fluid volume - 5

Answer 5

NEURAL

SNS
- beta adrenergic receptors + noradrenaline = afferent arteriole of kidney constricted

• secretes renin

PNS
- ach + muscarinic receptors = afferent arterioles of kidney dilated

• inhibits renin