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ANAT UNIT 1 FINAL

INTRODUCTION TO THE ANS

QuestionAnswer
In the 2-neuron series of the ANS, the soma of the first nerve cell is ALWAYS located in: THE CNS
In the 2-neuron series of the ANS, the soma of the first nerve cell is ALWAYS located in: A GANGLION IN THE PNS
The first nerve cell is the pre or postganglionic neuron? PREGANGLIONIC
The second nerve cell is the pre or postganlionic neuron? POSTGANGLIONIC
What does the axon of the preganglionic neuron synapse with? THE POSTGANGLIONIC NEURON
What does the axon of the postganglionic neuron synapse with? THE TARGET TISSUE
Where are the preganglionic sympathetic neuron cell bodies? LATERAL HORN OF THE SPINAL CORD FROM T1-L2
Where are the preganglionic parasympathetic neuron cell bodies? BRAINSTEM AND LATERAL HORN OF S2-S4
Where are postganglionic sympathetic neuron cell bodies? (MOSTLY) IN THE SYMPATHETIC CHAIN OR PRE-AORTIC GANGLIA
Where are postganglionic parasympathetic neuron cell bodies? IN OR NEAR THE TARGET ORGAN
Where do postganglionic sympathetic fibers distribute to? BODY WALL AND MOST VISCERAL ORGANS
Where do postganglionic parasympathetic fibers distribute to? VISCERAL ORGANS
Which system acts more globally, sympathetic or parasympathetic? SYMPATHETIC
Which system is more structured and works on specific target organs, sympathetic or parasympathetic? PARASYMPATHETIC
How is the sympathetic chain ganglia connected to the spinal nerves? GRAY AND WHITE RAMI COMMUNICANTES
Where are the white rami communicantes located? T1-L2
True or false: gray rami communicantes connect only spinal nerves T1-L2 to the sympathetic chain? FALSE. They connect ALL spinal nerves to the sympathetic chain.
What type of fibers are in the vagus nerve? PREGANGLIONIC PARASYMPATHETIC AND GVA (VISCERAL SENSORY)
Created by: AnatomyByDocRoxy