Spinal Anatomy Tracts (ANS & ENS) Flashcards Preview

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Flashcards in Spinal Anatomy Tracts (ANS & ENS) Deck (14):
0

The ANS innervates what

Involuntary structures such as the heart, smooth muscle and glands

1

The ANS is divided into what two groups

Sympathetic and Parasympathetics

2

Sympathetic axons include what cord levels

T1-L2/L2

3

The Sympathetics have short or long Pre-/Postganglionic axons

Pre- short
Post- Long

4

What neurotransmitter does the pre and postganglionic axons release

Pre- ACH (Acetylcholine)
Post- Epinephrine and Norepinephrine

5

Parasympathetic axons include what levels

CNs III, VII, IX and X
Sacral nerves S2-S4

6

What are the lengths of the Pre and Postganglionic Axons of the Parasympathetic axons and what neurotransmitter do they release

Long Pre and they release ACH
Short Post ganglionic and they release ACH

7

The Enteric division of the nervous system controls what

the GI tract

8

What are the Two types of ganglia found in the ENS

Myenteric (auerbach's) and Submucosal (Meissner's)

9

What does Myenteric (Auerbach's) ganglia doe

motor innervation to both layers of tunica muscularis

10

what type of autonomics are found in the myenteric ganglia

both para and sympathetics

11

what is the submucosal (meissner's) ganglia do as well as what type of autonomics are found within it

Secretomotor to lumen and ONLY parasympathetics

12

How many Neurotransmitters are found in the Enteric system

over 30 NT's
95% of serotonin found in the bowels and 50% dopamine

13

the enteric division of the nervous system is also known as what

the second brain of the body