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Flashcards in ANS Deck (16)
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1

neurons for ANS

pregang (body in CNS)
postgang (in autonomic gang in PNS)

2

neuron of ANS origin

pregang = neuroectoderm
postgang = neural crest

3

para NT/receptors

pre: ACh NT
post: nicotinic receptor, ACh NT
target: muscarinic receptor (organs - no body wall)

4

symp NT/receptors (target organs)

pre: ACh NT
post: nicotinic receptor, NE NT
target: alpha or beta receptors
OR
pre: ACh NT
adrenal medulla: nicotinic receptor, NE hormone in blood
target: alpha or beta receptors

5

symp NT/receptors (target body wall)

pre: ACh NT
post: nicotinic receptor, ACh NT
target: muscarinic receptor

6

somatic NT/receptors

neuron: NT = ACh
muscle: receptor = musculo-nicotinic

7

somatic NT/receptors

neuron: NT = ACh
muscle: receptor = musculo-nicotinic

8

symp pathway

1. hypothalmus
2. ipsilateral pre-ganlionic (intermediate horn?)
3. postgang --> target

9

types of Horner

peripheral (lesion in pre or plexus)
central (lesion in hypo tract)

10

types of Horner

peripheral (lesion in T1 or plexus)
central (lesion in hypo tract)

11

Horner sx

ipsilateral ptosis, miosis and anhydrosis

12

Horner sx

ipsilateral ptosis, miosis and anhydrosis

13

sympathetic levels

T1-L2

14

parasympathetic levels

CN III
CN VII
CN IX
CN X
S2-S4

15

para pathway

1. bilateral hypothalamus
2. preganglionic
3. postganglionic

16

para bilateral hypo -->

no central lesions - if one or other is knocked out its still ok