Gustatory cells within a taste bud are specialized neuroepithelial cells that have a(n) ________ life span.
A. 1 year
B. 7?10 day
C. 24-hour
D. 2?4 week
E. undetermined
Answer: B
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Steroid hormones diffuse through cell membranes, then bind with receptors, whereas nonsteroid hormones bind receptors on the target cell membrane.
Answer the following statement true (T) or false (F)
Which of the following does NOT describe the highest hierarchical level of motor control?
A. It creates a "motor program" that uses afferent information to generate a pattern of neural activity required to carry out a given action. B. It sends signals along "command neurons" to parts of the brain that make up the middle level of the motor control hierarchy. C. It involves brain regions that include the sensorimotor and cortical association areas. D. It initiates consciously planned movements. E. It involves brain regions that function in memory, emotions, and motivation.
Shaking your head "No" requires what type of movement?
a. Rotation. b. Supination. c. Abduction. d. Adduction.
The corticospinal pathways:
A. are descending motor pathways. B. begin in the cortex of the cerebellum. C. consist of many interneurons linked synaptically. D. are composed of alpha motor neurons. E. bring sensory information from the spinal cord to the somatosensory region of the cerebral cortex.