ESS 345 EXAM 2 QUESTIONS AND ANSWERS VERIFIED
insulin
lowers glucose levels, made by beta cells, counters hyperglycemia, and facilitates glucose into cells via GLUT-4
glacagon
raises blood glucose, made by alpha cells, counters hypoglecemia
During exercise
Plasma volume lowers
What hormones ...
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ESS 345 EXAM 2 QUESTIONS AND ANSWERS
VERIFIED
insulin
lowers glucose levels, made by beta cells, counters hyperglycemia, and facilitates glucose into cells via
GLUT-4
glacagon
raises blood glucose, made by alpha cells, counters hypoglecemia
During exercise
Plasma volume lowers
What hormones correct fluid imbalances
Posterior pituitary gland
Adrenal cortex
Kidneys
posterior pituitary
secreates ADH and Oxytocin
Only ADH is involved with
exercise
Stimuli for ADH release
, decrease plasma volume = increased osmolality
osmolarity stimulates
osmoreceptors in hypthalamus
when ADH is released
water retention increases at the kidney
Osmolarity
measure of total concentration of dissolved particles in body fluid compartments
if compartment osmolality decreases
water is drawn out
if compartment osmolality increases
water is drawn in
adrenal cortex
outermost layer secretes mineralcorticoids and aldosterone
Aldosterone
higher Na+ retention by kidneys which causes water retention
Stimuli for aldosterone release
- decrease plasma Na+
- decrease blood volume, blood pressure
- increase plasma K+
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