4. CP Anatomy of Autonomics DSA Flashcards
What is the function of the afferent fibers of the autonomic nervous system?
Carrying information on stretch, temperature, and chemical and metabolic changes to the spinal cord.
Where is the parasympathetic nervous system restricted?
Head, neck, body cavities, genitalia
Which nervous system division has long preganglionic fibers?
Parasympathetic
What is the primary neurotransmitter for the sympathetic nervous system?
What about the parasympathetic?
Norepinephrine
Acetylcholine
What are white rami communicantes?
Pre-synaptic axons of the sympathetic trunk entering the sympathetic chain.
What are grey rami communicantes?
Post synaptic axons being carried back to the spinal nerve from the sympathetic chain.
What is the destination of a thoracic splanchnic nerve?
Prevertebral ganglia and then the viscera
What cell of the adrenal medulla secretes epinephrine?
Chromaffin cells
What is the major organ of the sympathetic nervous system?
The adrenal medulla
What cranial nerves contain parasympathetic nerve fibers?
III, VII, IX, X
(3, 7, 9, 10)
What is the function of the enteric nervous system?
Coordination of the autonomous functions of the GI system.
