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Author Question: Rising PCO2 levels cause the ________ of smooth muscles in the walls of arterioles. A) relaxation ... (Read 68 times)

ashley

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on: Jul 3, 2018
Rising PCO2 levels cause the ________ of smooth muscles in the walls of arterioles.
 
  A) relaxation B) spasm C) constriction D) None of the above

Question 2

The primary extracellular cations in the body are:
 
  a. Calcium and chloride
  b. Sodium and calcium
  c. Magnesium and potassium
  d. Iron and sodium bicarbonate


Joy Chen

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Reply #1 on: Jul 3, 2018
Answer to Question 1

A

Answer to Question 2

b
Rationale: a. Although calcium is a primary cation in extracellular fluid, chloride is an anion.
b. Correct.
c. Magnesium and potassium are found in the intracellular space.
d. Iron and sodium bicarbonate are not primary cations in extracellular space.


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