Blood Volume regulation Flashcards
If MAP is unchanged, a decrease in sympathetic outflow to systemic resistance vessels would tend to cause water to shift _________________ the circulating blood volume to/from the interstitium because capillary pressure would _______________.
out of, increase
Assume that MAP decreases but sympathetic outflow to the kidney is maintained, then urinary output would likely ___________ since _________________ would decrease.
decrease, the rate of glomerular filtration
If MAP decreases and the BRR is active, urinary output would likely __________ since renal afferent arteriolar resistance would ______________ and renal filtration pressure would ___________.
decrease, increase, decrease
ADH release from the ___________________ would increase if central venous blood volume______________.
posterior pituitary, decreased
True or False: The afferent discharge from low pressure baroreceptors increases when the central venous volume decreases.
False, LPB discharge increases when the receptors are stretched as CVV increases
The renin-angiotensin-aldsterone system (RAAS) is ______________ by an increase in sympathetic outflow.
excited (or stimulated or activated)
All other things equal, a drug that blocks angiotensin converting enzyme (ACE) would result in a _______________ in blood volume.
decrease
An increase in plasma aldosterone causes a decrease in ____________ due to an increase in _________________ retention in the renal tubule exchange process.
urinary output, Na+ retention
Effects of an increase in circulating angiotensin II include a/an _____________ in drinking behavior, a/an______________ in aldosterone release, and a/an _______________ in TPR.
increase, increase, increase
__________ is a hormone with potent diuretic action synthesized in atrial muscle and released upon atrial ________________.
ANP, distension
