Autonomic Nervous System I Flashcards Preview

Anatomy Week 2 > Autonomic Nervous System I > Flashcards

Flashcards in Autonomic Nervous System I Deck (23):
1

GVA

General visceral Afferent

2

GVE

General Visceral Efferent

3

Efferent is...

Motor, Ventral

4

Afferent is..

Sensory, Dorsal

5

How many neurons between the CNS and the target for GVA?

1

6

How many neurons between the CNS and the target for GSA?

1

7

Where are the GVA cell bodies located

sensory ganglia of the spinal and cranial nerves

8

How neurons between the CNS and the target for GVE?

2

9

What are the 3 types of autonomic motor ganglia?

Chain, Collateral, Terminal

10

What type of neuron contains preganglionic and postganlionic components?

GVE

11

What type of output does the GVE give?

Motor output to glands, smooth muscle, cardiac muscle

12

What are the functional and anatomic divisions of GVE?

sympathetic and parasympathetic

13

How do sympathetic and parasympathetic systems differ?

Locations of the preganglionic and postganglionic cell bodies

Neurotransmitters and receptors

Patterns of innervation

14

Where are preganglionic sympathetic (thoracolumbar) cell bodies located?

intermediolateral cell column in gray matter in T1-L2

15

Where are postganglionic cell bodies of the sympathetic nervous system located?

paravertebral chain or collateral prevertebral motor ganglia and medulla of adrenal gland

16

Where does sympathetic innervation project to?

1. Visceral structures of body wall (limbs, trunk, neck)
2. Visceral structures of head
3. Viscera of thorax
4. Viscera of abdomen and pelvis

17

The parasympathetic (craniosacral) preganglionic cell bodies are located

in the nuclei of CN (3,7,9,10) in brain stem and in ventral horn of gray matter S2-S4

18

Where are parasympathetic postganglionic cell bodies located?

terminal motor ganglia near the target (except for head)

19

Where are parasympathetic postganglionic cell bodies located in the head?

usually on the surgace of or embedded in the wall of organ innervated

20

What three regions does the parasymphathetic nervous system project to?

Visceral Structures of head

Viscera of thorax and upper abdomen

viscera of lower abdomen and pelvis

21

T or F one preganglionic neuron may synapse with many postganglionic neurons

T

22

Where are the 14 preganglionic fibers of the sympathetic nervous system located?

T2-L2

23

What are is the name for the 14 presympatheic spinal nerves?

White rami communicantes