Final Exam - Autonomic Nervous System Flashcards
A __________ is a collection of cell bodies within the CNS
nucleus
A __________ is a collection of cell bodies within the PNS
ganglia
A __________ is a network of intersecting nerves
plexus
A(n) __________ is a sensory axon that brings information TO the CNS.
Afferent axon
An __________ is a motor axon that brings information FROM the CNS.
Efferent axon
__________ are neurons that supply the voluntary, striated skeletal muscle
Somatic efferent neurons
__________ are neurons that supply the involuntary, smooth muscle of viscera, blood vessels, cardiac muscle, & glands
Visceral efferent neurons
Right & left vagus nerves divide caudal to the root of the lung into ________ & _________ branches
dorsal & ventral
The __________ is formed with the right & left ventral branches of the vagus nerve unite
ventral vagal trunk
The ventral vagal trunk supplies __________
the liver, parietal surface of the stomach, & the pylorus
The __________ is formed with the dorsal branches of each vagus nerve unite
dorsal vagal trunk
The __________ supply the diaphragm.
phrenic nerves
The phrenic nerves supply __________
the diaphragm
________________ are the small enlargements off the sympathetic trunk at each intercostal space
Sympathetic trunk ganglia
The __________ leave sympathetic trunk at the level of the 12th or 13th thoracic sympahetic ganglion
major splanchnic nerves
The __________ supplies nerves to the adrenal gland
minor splanchnic nerves
The __________ arise from the 2nd to 5th lumbar sympathetic ganglia and are distributed to the aorticorenal, cranial mesenteric, & caudal mesenteric ganglia & plexuses
lumbar splanchnic nerves
The __________ is formed from celiac & cranial mesenteric ganglion
celiacomesenteric ganglion & plexus
__________ are the sympathetic nerves that leave the caudal mesenteric ganglion & course caudally near the ureters to the pelvic plexus
right & left hypogastric nerves
All organ systems have dual input. However, these only have SNS innervation:
blood vessels, piloerection mechanism, glands
Short preganglionic fibers and long postganglionic fibers are characteristic of the ____________________
Sympathetic nervous system
long preganglionic fibers and short postganglionic fibers are characteristic of the ____________________
Parasympathetic nervous system
_____________ is a rare, often benign endocrine tumor of the adrenal medulla
Pheochromocytoma
__________ is the general term for the dysfunction of the autonomic nervous system
dysautonomia
