Chapter 3: Autonomic Nervous System- Parasympathetic (Craniosacral Division) Flashcards Preview

Paramedic Lecture: 1rst Semester > Chapter 3: Autonomic Nervous System- Parasympathetic (Craniosacral Division) > Flashcards

Flashcards in Chapter 3: Autonomic Nervous System- Parasympathetic (Craniosacral Division) Deck (1)
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1
Q

What are the steps of the parasympathetic nervous system?

A

1) Preganglionic (first order) neurons in brain and sacral spinal cord (S2-S4)
send preganglionic fibers to
2) Ganglia in or near target organs- Pregangloionic fibers release ACh (excitatory), stimulating ganglionic (second-order) neurons
that send postganglionic fibers to
3) Target organs- Postganglionic fibers release ACh at neuroeffector junction
4) Feed or breed response