The amount of ADH that is secreted by the posterior pituitary glands varies with
a) blood osmotic pressure.
b) blood calcium levels.
c) blood oxygen levels.
d) blood glucose levels.
e) All of these choices.
a
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When shoveling snow from the driveway, the older man did not feel the bitter cold. Which action made his blood vessels get smaller in diameter, conserving heat in the warm core of his body?
A) Vasomotor B) Vasopressor C) Vasoconstriction D) Vasodilation
The partial pressure of oxygen
a. in the atmospheric air averages 79 percent of total atmospheric pressure b. in blood is the most important factor that determines percent O2 saturation of Hb c. in arterial blood decreases when Hb preferentially combines with CO rather than O2 d. is both b and c e. is none of the above
Which of the following is NOT a function of organic anion and cation carriers in the proximal tubule?
a. facilitating the elimination of non-filterable organic ions in urine b. facilitating the excretion via glomerular filtration of blood borne chemical messengers c. facilitating the excretion of K+ and Na+ in the urine d. facilitating the removal of foreign organic chemicals e. none of these.
The gastrocnemius muscle is most likely to be innervated by the ________ nerve.
A. femoral B. obturator C. median D. common fibular (peroneal) E. tibial