The neurotransmitter responsible for transmitting impulses through somatic nerves is:
a. Norepinephrine
b. Acetylcholine
c. Dopamine
d. Acetylcholinesterase
b
Rationale: A. Norepinephrine is a neurotransmitter of postganglionic sympathetic nervous tissue.
b. Correct.
c. Dopamine is thought to cause dilation of the renal, coronary, and cerebral arteries.
d. Acetylcholinesterase is an enzyme responsible for the breakdown of acetylcholine in the synapse.
You might also like to view...
A young female was involved in a motor-vehicle collision in which her car struck the rear end of another vehicle. As a result of the impact, her neck muscles were overstretched and torn. She is complaining of neck pain. Based on this mechanism, the most likely type of injury she has is:
a. neural ischemia. b. whiplash. c. translational strain. d. a Jefferson fracture.
The normal respiratory rate for a newborn should not exceed ______ breaths/min.
A. 50 B. 60 C. 70 D. 80