The major regulatory center of the autonomic nervous system is believed to be the ________ since this brain region has functions that require appropriate activation of sympathetic and parasympathetic nerve fibers.
A. midbrain
B. cerebrum
C. hypothalamus
D. thalamus
Answer: C
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White rami carry ________ neurons, while gray rami carry ________ neurons.
A. unmyelinated preganglionic; myelinated postganglionic B. unmyelinated postganglionic; myelinated preganglionic C. myelinated preganglionic; unmyelinated postganglionic D. myelinated postganglionic; unmyelinated preganglionic E. myelinated preganglionic; myelinated postganglionic
Enzymes secreted by the small intestine include
A. disaccharidases. B. secretin. C. cholecystokinin. D. bile. E. histamine.
In a motorcycle accident, a man suffers an arm and shoulder injury. Which nerve is most likely damaged if he can extend his elbow but can't flex his wrist?
A) Radial B) Musculocutaneous C) Axillary D) Median
In horses, the V-shaped pad of soft horn that is located in the central region of the ventral hoof surface is known as the ________________________________________
Fill in the blank(s) with correct word