Neurons from the _______ region innervate the eye, structures of the head, and thoracic and abdominal organs.
A) cranial
B) sacral
C) lumbar
D) thoracic
Correct Answer:
Verified
Q22: The main branch of the sacral plexus
Q23: There are _ pairs of cervical spinal
Q24: Preganglionic neurons of the sympathetic system release
Q25: Postganglionic neurons of the sympathetic system release
Q26: The peripheral nervous system consists of _.
A)
Q28: Both preganglionic and postganglionic fibers of the
Q29: The _ branch innervates the anterior and
Q30: Second efferent neurons are _ neurons.
A) ganglionic
B)
Q31: The _ system is most active during
Q32: The _ nerve, which sends impulses to
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