homeostasis Flashcards
1
Q
normal osmolality
A
290
2
Q
sodium is regulated according to
A
voume status
3
Q
water handling occurs in response to changes in
A
plasma osmolality
4
Q
____ is stimulated as plasma osmolality rises to induce fluid intake and correct the water deficit
A
thirst
5
Q
cellular acidosis in the kidney tubules stimulates __________ and upregulated net acid excretion
A
ammoniagenesis
6
Q
handling of an acid load begins with buffering in the plasma by
A
bicarb
7
Q
calcium is sensed in the ionized form by the _________-
A
parathyroid gland
8
Q
what is released when ionized calcium levels fall
A
PTH
9
Q
PTH (3)
A
- mobilizes calcium from bone
- stimulates calcium reabsorption from the filtrate in the DT
- lead to 1,25- hydroxylation of Vit.D in the kidney, which then stimulates calcium absorption from the gut
10
Q
a continued load leads to
A
adaptation
11
Q
the plasma is maintained by plasma proteins, which produce a
A
higher oncotic pressure
