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Flashcards in Renal Conentrating Mechanisms Deck (4)
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0
Q

Osmolarity

A

Number of particles in 1litre of water

1
Q

Osmolality

A

Number of solute particles in 1kg of water

2
Q

Concentration of interstitium

A

Reabsorption of salts from ascending limb
Secretion of salts from ascending vasa recta ad absorption of water
Secretion of water and reabsorption of salts from descending vasa recta
Reabsorption of water from descending limb

3
Q

Osmoregulation

A

Baroreceptors-> detect decrease in BP->posterior pit. neurohypophysis-> ADH-> splanchnic vasoconstriction, increased DT/CD H20 permeability
Osmoreceptors-> detect decrease in osmolality-> same as above and thirst