The cells in the primary motor cortex are most active ___, and receive sensory information in order to ___.
a. In preparation and planning for movements; know where to start the movements
b. During involuntary, or reflexive, movements; start the movement
c. At or after the end of movements; stop the movement
d. During voluntary movements; refine movements as they are performed
Question 2
Which of the following is not an ultradian rhythm?
a. Hormone production
b. Alertness
c. Urinary output
d. Body temperature
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