25. Within the autonomic nervous system, preganglionic fibers leave the CNS and then synapse on a) postganglionic synapses.
b) visceral reflex responses.
c) motor neurons.
d) ganglionic neurons.
e) afferent neurons.

between the two muscle layers is the myenteric or auerbach's plexus, which controls peristalsis. in the colon, the muscularis externa is much thicker because the feces are large and heavy, requiring more force to push along. the stomach has a third layer of muscularis externa: the inner oblique layer.

answer: every other day

explanation: because you don't want to over work your body and especially if your just starting to work out.

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