Which of the following does NOT contribute to the longer lasting and more widespread effects observed with sympathetic activation versus parasympathetic activation?
a) Norepinephrine is more slowly removed from synapses than ACh.
b) Additional norepinephrine is released from the adrenal gland.
c) Greater divergence occurs in sympathetic neural pathways.
d) Blood flow to the hypothalamus is decreased when sympathetic activation occurs.
d
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Which of the following best describes the insertion of the extensor digitorum?
A) It directly inserts on the index finger only. B) It directly inserts on all digits of the hand. C) It indirectly inserts on all digits of the hand except the thumb. D) It indirectly inserts on all digits of the hand. E) It directly inserts on all digits of the hand except the thumb.
What happens to the diffusion rate as the distance increases?
a. speeds up b. no change c. requires more energy d. triggers the membrane to change e. becomes slower
Which spinal cord tracts carry sensory information?
A. Superficial B. Ventral C. Ascending D. Inferior
Glucose is a
A. polar molecule, and therefore it dissolves readily in plasma. B. polar molecule, and therefore it requires a transporter in the blood. C. nonpolar molecule, and therefore it dissolves readily in plasma. D. nonpolar molecule, and therefore it requires a transporter in the blood.