At the end of inspiration, how much of the air in the alveoli is fresh air?
a. about 3%
b. about 5%
c. about 8%
d. about 10%
e. about 13%
e
Anatomy & Physiology
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The vitamin that is part of the coenzyme NAD is
A) thiamine. B) riboflavin. C) niacin. D) folic acid (folate). E) cobalamin.
Anatomy & Physiology
________ does not occur upon exposure to cold
a. Skin vasoconstriction b. Decreased muscle tone c. Nonshivering thermogenesis d. Behavioral adaptations e. Stimulation of thermoreceptors
Anatomy & Physiology
Defense cells in blood are called
A) red blood cells. B) platelets. C) fibroblasts. D) adipocytes. E) white blood cells.
Anatomy & Physiology
The carpus contains ________ bones
A) 4 B) 5 C) 6 D) 7 E) 8
Anatomy & Physiology