Autonomic Nervous system
Vasoconstriction and bronchodilation result from stimulation by the ________ division.
Autonomic fibers emerging from the craniosacral region of the spinal
cord belong to the
Postganglionic fibers of the parasympathetic system are called
________ because they release
the neurotransmitter acetylcholine.
The ________ nervous system consists of complete three-neuron reflex
arcs that exist entirely
within the wall of the digestive tube.
During development, all neurons with cell bodies in the PNS derive from the ________.
The cell bodies of postganglionic parasympathetic fibers to the pupil
and lens of the eye are
located in the ________ ganglion.
The ________ plexus is a network through which branches of the vagus
pass to the intestines
Autonomic fibers to the pelvic organs pass through the pelvic plexus,
also known as the
Visceral reflexes that do not involve the CNS but instead synapse in
sympathetic ganglia are
called ________ reflex arcs.
Sympathetic preganglionic fibers leaving the thoracic spinal nerves
may ascend within the
________ before synapsing so that they can exit near the head.
Gray rami communicantes contain ________ sympathetic fibers that
travel to peripheral
The sensation of pain from a visceral organ that is perceived in the
skin or outer body is the
phenomenon called ________.
The primary integrating center of the ANS is the ________ of the diencephalon.
The adrenal medulla is comprised of modified sympathetic ________
neurons which secretes
epinephrine and norepinephrine.
adrenergic or post-ganglionic
Congenital megacolon, or Hirschsprung's disease, is a birth defect in
which the ________
innervation of the distal region of the large intestine fails to develop normally.