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15 Cards in this Set

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  • Back
What is the restricted definition of the autonomic nervous system?
That part of the peripheral nervous system which is motor to:
smooth muscle
cardiac muscle
glands
What is the anatomical difference between the sympathetic and parasympathetic?
Sympathetic ganglia are near the CNS, so PREganglionic fibers are SHORT, and POSTganglionic fibers are LONG.

Parasympathetic ganglia are near or in the target, so PREganglionic fibers are LONG, and POSTganglionic fibers are SHORT.
What is the pharmacological difference between sympathetic and parasympathetic (neurotransmitters at postganglionic terminal)?
sympathetic postganglionic terminal => norepinephrine

parasympathetic postganglionic terminal => acetylcholine
Cell bodies of Sympathetic preganglionic neurons are found in ______
The lateral intermediate gray of T1-L2
The pathway of sympathetic motor fibers from the spinal cord to the sympathetic trunk is
1
2
3
4
5
1 Lateral Intermediate Gray
2 Ventral Root
3 Spinal Nerve
4 White Communicating Ramus
5 Paravertebral Ganglion
The Sympathetic Trunk spans _______________ of the vertebral column
the entire length
After entering the sympathetic trunk, a preganglionic nerve may:
1
2
3
4
1 Synapse on a postganglionic neuron in the sympathetic trunk at the level of entry
2 ascend to synapse at a higher ganglion
3 descend to synapse at a lower ganglion
4 Exit as a splanchnic nerve to synapse at a Collateral ganglion
Sympathetic Trunk outflow fibers may be:
1
2
3
4
5
1 Preganglionic Splanchnic nerves
2 Postganglionic fibers following Gray Communicating Rami to reenter the spinal nerve
3 Direct Visceral Branches (C, upper T)
4 Superior Cervical Ganglion => carotid arteries => periarterial plexuses in head
5 Superior Cervical Ganglion => cranial nerves => target organ
Gray Communicating Rami may be found _______
White Communicating Rami may be found _______
The entire length of the spinal cord

T1-L2
The cell bodies of Parasympathetic preganglionic neurons are in _______
1 Brain stem nuclei of CN III, VII, IX, X

2 Lateral intermediate gray of S2,3,4
Parasympathetic preganglionic neurons to the:
1 head and neck _____
2 thoracic and abdominal viscera ______
3 pelvic, perineal, abdominal organs ________
1 CN III, VII, IX, X
2 CN X
3 S2,3,4 and their ventral rami
The contents of the vertebral canal from superficial to deep are:
vertebra =>
epidural space (fat, internal vertebral venous plexus)=>
dura mater =>
subdural space (potential) =>
arachnoid =>
subarachnoid (CSF, trabeculae) =>
pia mater (arteries and veins for spinal cord)
=> spinal cord
Spinal cord and Vertebral column are the same length until ___________
the 3rd fetal month
At Birth, the spinal cord ends at ___________
L2-3
At 5 years of age through adulthood, the spinal cord ends at ____________
L1-L2