Pharyngeal constrictor muscles are especially important for which function?
A. Breathing
B. Expressing fright
C. Chewing food
D. Mixing food with enzymes
E. Swallowing
Answer: E
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The nucleus of a neuron is housed in the
a. axon b. axon hillock c. cell body d. collaterals e. dendrites
Parkinson's disease is
a. associated with a deficiency of serotonin. b. treated with L-Dopa c. characterized by a resting tremor. d. both (a) and (b) above. e. both (b) and (c) above.
The lining of the alveolus is coated with an oily secretion called ____________________.
A. surfactant B. mucus C. saliva D. membrane E. none of the choices are correct.
In order to study in detail the anatomy of internal cell parts, it would be best to use
A. a transmission electron microscope (TEM). B. a scanning electron microscope (SEM). C. tissue cultures. D. flashlights. E. x-rays.