Spinal Anatomy Tracts (ANS & ENS) Flashcards

0
Q

The ANS is divided into what two groups

A

Sympathetic and Parasympathetics

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1
Q

The ANS innervates what

A

Involuntary structures such as the heart, smooth muscle and glands

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2
Q

Sympathetic axons include what cord levels

A

T1-L2/L2

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3
Q

The Sympathetics have short or long Pre-/Postganglionic axons

A

Pre- short

Post- Long

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4
Q

What neurotransmitter does the pre and postganglionic axons release

A

Pre- ACH (Acetylcholine)

Post- Epinephrine and Norepinephrine

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5
Q

Parasympathetic axons include what levels

A

CNs III, VII, IX and X

Sacral nerves S2-S4

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6
Q

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

A

Long Pre and they release ACH

Short Post ganglionic and they release ACH

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7
Q

The Enteric division of the nervous system controls what

A

the GI tract

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8
Q

What are the Two types of ganglia found in the ENS

A

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

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9
Q

What does Myenteric (Auerbach’s) ganglia doe

A

motor innervation to both layers of tunica muscularis

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10
Q

what type of autonomics are found in the myenteric ganglia

A

both para and sympathetics

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11
Q

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

A

Secretomotor to lumen and ONLY parasympathetics

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12
Q

How many Neurotransmitters are found in the Enteric system

A

over 30 NT’s

95% of serotonin found in the bowels and 50% dopamine

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13
Q

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

A

the second brain of the body

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