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Nervous system
Sympathetic Autonomic Thoracolumbar division
15
Anatomy
Undergraduate 1
04/17/2012

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Term
Sympathetic Preganglionic neurons originate in
Definition
Gray matter of Thoracic & Lumbar region of spinal cord
Term
Sympathetic Preganglionic neurons
Definition
Leave cord & enter sympathetic ganglionic chain.
Term
Sympathetic Preganglionic neurons
Definition
1. Some Sympathetic PREganglionic neurons synapse with Sympathetic POSTganglionic inside the chain;
2. Other sympathetic PREganglionic neurons pass out of the chain and synapse with sympathetic POSTganglinionic neuron in ganglia outside of the chain
Term
What is Sympathetic chain
Definition
Gray matter each side of vertebrae
Term
Preganglionic neuron
Definition
CNS (brain) Before the Sympathetic chain
Term
Postganglionic neuron
Definition
After the sympathetic chain; Synapse with the effector (organ or glands i.e; muscle, heart, etc)
Term
Ganglion
Definition
Mass of gray matter where preganglion synapses with postganglion
Term
In order for impulse to go from CNS to the Effector has to travel along
Definition
Preganglionic & Postganglionic neurons
Term
Preganglion synapses with Postganglion
Definition
and then Postganglion carries impulse to effector
Term
Sympathetic (thoracolumbar) pathway consist of
Definition
Thoracic and Lumbar
(Brain & spinal cord)
Term
Sympathetic region is sometimes called
Definition
Thoracolumbar region
Term
Sympathetic neurons all go into the
Definition
sympathetic chain
Term
Preganglionic neurons (solid) synapse with Postganglionic neurons,
Definition
some inside the chain, some outside the chain.
Term
Sympathetic post gang neurons synapse with the effector Examples:
Definition
Cardiac muscles, smooth muscles in intestines, bladder. Glands salivary, pancreas
Term
Sympathetic all has its origin in the thoracic and lumbar region of the cord
Definition
Eventually symp post ganglion will carry impulse to organ, muscle, glands (salivary, pancreas)
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