Rotating the forearms so that the palms are forward is an example of
A. abduction.
B. elevation.
C. supination.
D. inversion.
Answer: C
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An abnormal blind spot appearing in vision is called a(n)
A) astigmatism. B) cataract. C) scotoma. D) chalazion. E) sty.
During the recovery period following exercise, all of the following are true, except
A) Lactic acid is removed from muscle cells. B) The muscle actively produces ATP. C) Muscle fibers remain contracted. D) Oxygen is consumed. E) Heat is generated.
Which of the following reduces alveolar surface tension?
A) gas B) surfactant C) water D) mucus
Arrange the following list of biochemical events in the correct sequence
(1) An action potential is conducted deep into the muscle fiber by the T tubule. (2) Calcium ions bind to troponin. (3) The membranes of the sarcoplasmic reticulum become more permeable to calcium ions. (4) Calcium ions diffuse into the sarcoplasm around the myofibril. (5) The troponin-tropomyosin complex moves exposing active sites. A. 1, 5, 2, 3, 4 B. 1, 3, 4, 2, 5 C. 1, 2, 3, 4, 5 D. 1, 3, 2, 5, 4 E. 1, 4, 3, 2, 5