The trapezius muscle may be separated into all of the following groups, except __________.
A. lateral
B. superior
C. middle
D. inferior
Answer: A. lateral
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The exchange of oxygen and carbon dioxide between the air in the alveoli and blood in the lungs is called
A. ventilation. B. systemic respiration. C. internal respiration. D. external respiration. E. cellular respiration.
The mitochondrion is the site of ________.
A. glycolysis B. lactate formation C. the citric acid cycle D. electron-transport chain E. Both "the citric acid cycle" and "the electron-transport chain" are correct.
All fibers of the triceps brachii are innervated by the __________.
A. humeral nerve B. axillary nerve C. ulnar nerve D. radial nerve
In order to stimulate skeletal muscle fibers, motor neurons release the neurotransmitter ________.
Fill in the blank(s) with the appropriate word(s).