Day 2 Flashcards
1
Q
What does the autonomic/visceral nervous system entail?
A
- innervates glands, smooth, and cardiac muscle
- involuntary
- CNS and PNS
- two subdivisions (parasympathetic and sympathetic)
- 2 efferent neurons
2
Q
In the parasympathetic nervous system, which neuron is longer?
A
Preganglionic neuron
3
Q
What nerves does the parasympathetic nervous system innervate?
A
Cranial nerves 3, 7, 9, and 10
Sacral nerves 2, 3 and 4
4
Q
What neurotransmitter is released in the parasympathetic nervous system?
A
Ach
5
Q
What nerves does the sympathetic nervous system innervate?
A
T1-L2
6
Q
In the sympathetic nervous system, which neuron is longer?
A
Post ganglionic neuron
7
Q
What neurotransmitter is released in the sympathetic nervous system?
A
Ach in first synapse, norepinephrine in second synapse
8
Q
What are the effects on the body in the parasympathetic nervous system?
A
- slows heart rate
- speeds gut motility
- constricts pupils
- constricts respiratory tree
9
Q
What are the effects on the body of the sympathetic nervous system?
A
- speeds heart rate
- slows gut motility
- dilates pupils
- dilates respiratory tree
