In the sympathetic and parasympathetic nervous systems, the preganglionic neuron releases the neurotransmitter
A) Acetylcholine.
B) Nicotine.
C) Glycine.
D) Epinephrine.
Answer: A
Anatomy & Physiology
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Pain impulses are first processed in the
A. gray matter of the posterior horn. B. motor cortex of the cerebrum. C. cerebral cortex. D. dorsal root ganglion.
Anatomy & Physiology
Which of the following organs is NOT in the abdominopelvic cavity?
A) small intestine B) stomach C) lung D) liver
Anatomy & Physiology
The fissure seen on sectional images separating the two hemispheres of the cerebrum is the
A. longitudinal. B. sylvian. C. transverse. D. central. E. lateral.
Anatomy & Physiology
In the mammalian heart, the valves open and close because
A) They are under neural control. B) They are under myogenic control. C) Changes in chamber pressure cause them to open and close. D) All of the above
Anatomy & Physiology