The function of upper motor neurons is to
A. directly excite skeletal muscle cells.
B. excite or inhibit lower motor neurons.
C. excite motor portions of the thalamus.
D. excite or inhibit motor portions of the cerebral cortex.
E. excite or inhibit skeletal muscle cells.
Answer: B
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a. increased alveolar dead space b. decreased alveolar dead space c. increased respiratory rate d. increased tidal volume e. quiet breathing
The process of erythrocyte production is called ________.
Fill in the blank(s) with the appropriate word(s).
Even though all action potentials are the same, the brain can differentiate a variety of stimuli by source and intensity. The mechanism by which the nervous system converts these action potentials into meaningful information is called neural ________.
A. recruitment B. facilitation C. pooling D. integration E. coding
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A. feminized males. B. males with speech and reading problems. C. sterile females. D. nonexistent.