Osmoreceptors change their firing rate in response to a. the ...

[lindiwe]

Osmoreceptors change their firing rate in response to
 
  a. the angiotensin concentration in blood.
  b. the concentration of renin within the blood.
  c. movement of water out of the osmoreceptor as the interstitial fluid becomes hypertonic.
  d. reduced osmotic pressure within the blood plasma.
  e. increased blood plasma volume.

Question 2

Water loss from the body through evaporation results in
 
  a. a loss of only interstitial fluid.
  b. an increased concentration of solute within the interstitial fluid.
  c. movement of water into the cells.
  d. gain of water into the plasma.
  e. loss of sodium from inside the cells.

[mmpiza]

Answer to Question 1

Answer: c. movement of water out of the osmoreceptor as the interstitial fluid becomes hypertonic.

Answer to Question 2

Answer: b. an increased concentration of solute within the interstitial fluid.