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Flashcards in Hormonal Reg Deck (20)
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1

What is the major electrolyte in ECF?

Na+

2

Renal mechanism of Na+ balance are regulated by what?

Renin angiotensin aldosterone system, atrial peptide

3

What contributes directly to volume regulation?

ADH

4

Virtually all renal REABSORPTION is due to what?

Passive Na+ reabsorbtion into tubular cells, and Active Na+ removal from tubular cells due to ATPase pump.

5

What hormone regulates NaCl/H2) from the posterior pituitary ?

ADH

6

What hormone regulates NaCl/H2O from the kidney/adrenals?

Renin angiotensin aldosterone

7

What hormone regulates NaCl From the heart?

Atrial natriuretic peptide

8

What signals the kidney to conserve H20?

ADH (vasopressin)

9

What is a powerful vasoconstrictor targeting the arteriorlar smooth muscle via V1 receptor?

ADH

10

Where are osmole receptors found ?

Circumventricular organs near the 3rd ventricle

11

What causes insertion of aquaporins, making the collecting duct Permeable to h20

ADH via V2 receptor

12

What disease causes a decrease in ADH production or decreased response of the kidney to ADH?

Diabetes insipidis

13

What disease is an increase in ADH secretion even as plasma osmolarity is low ?

Syndrome of inappropriate ADH

14

What cells release renin?

Juxtaglomerular

15

What is the primary signal for the release of aldosterone ?

Angiotensin II

16

What is the most potent press or substance know?

Angiotensin II

17

What nuclei express angiotensin II receptors ?

Paraventricular

18

What is the major regulator for Renin angiotensin aldosterone system ?

Negative feedback

19

What promotes the excretion of sodium in the urine?

Atrial natriuretic peptide

20

What decreases blood volume and pressure?

ANP