試題詳解

41. Which one of the following statements is NOT true?
(A) Most of CO₂ from respiring cells diffuses into the blood and is transported in solution in blood plasma.
(B) Nitric oxide (NO) is a major inducer of vasodilation.
(C)The medulla regulates the rate and depth of breathing in response to pH changes in the cerebrospinal fluid.
(D) Return of blood to the heart can be enhanced by contraction of smooth muscle in venule walls and skeletal muscle contraction.
(E)None of the above.