Which is not characteristic of sympathetic pathways?
a. fibers issue from the thoracic and lumbar levels.
b. preganglionic fibers release norepinephrine.
c. postganglionic fibers release ACh.
d. short preganglionic fibers.
e. most preganglionic fibers synapse in the chain ganglia.
C
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A. help emulsify fats. B. are synthesized in the lumen of the small intestines. C. are a rich source of carbohydrate. D. are synthesized in intestinal epithelial cells. E. enter capillaries in the small intestine.
A junction specialized for communication between neurons is called a ________
A) dendrite B) axon C) telodendrion D) synapse
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A) alveoli B) bronchi C) pericardial space D) pleural space