Physiology Dumb Things Flashcards
1
Q
Daily ion requirements
A
1mmol for most things and 35-45mL/kg for water
2
Q
Daily bodily fluid production
A
Daily bile production 500-1000mL (gallbladder stores 60mL)
Daily insensible losses 500mL
Pancreas 1500mL
3
Q
Factors that affect renin secretion
A
Stimulatory:
Increased sympathetic activity via renal nerves
Increased circulating catecholamines
Prostaglandins
Inhibitory: Increased Na+ and Cl- across macula densa Increased afferent arteriolar pressure Angiotensin II Vasopressin
4
Q
Conditions that increase renin secretion
A
Na+ depletion Diuretics Hypotension Haemorrhage Upright posture Dehydration Cardiac failure Cirrhosis Constriction of renal artery or aorta Various psychological stimuli
