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Fundies First Module--First Exam > Autonomic NS > Flashcards

Flashcards in Autonomic NS Deck (33):
1

ANS classification

1. by anatomy
2. by neurotransmitter used

2

sympathetic

thoracolumbar

3

parasympathetic

craniosacral CN: 3,7, 9,10
S 2,3,4

4

ANS neuronal breakdown

pre/postganglionic fibers

5

sympathetic fibers synapse on

sympathetic ganglion chain--short pre-long post

6

uppermost sympathetic chain ganglia

stelate (star shapped) ganglia--largest

7

white rami

myelenated--pre-ganglionic fibers

8

gray rami

unmyelenated--post-ganglionic fibers

9

some efferent fibers don't synapse in sympathetic ganglia, they

synapse in colateral ganglion (celiac, and inferio/ superior mesenteric fibers)

10

Parasympathetic NS

preganglionic (long pre-gang) leave brainstem or sacrum and synapse very near target site (short post-ganglionic)

11

2 nt's in autonomic NS

1. Acetocholine (cholinergic synapse)
2. Norepinephrin (adrenergic synapse)

12

Break down epi/norepi

MAO monoamine oxidase

13

ACh receptors
cholinergic synapses

1. Nicotinic cholinergic: more reactive to nicotine--@ neuromuscular junctions, all autonomic ganglion, and adrenal mudella (understandable because no ganglionic synapse)
2. Muscarinic

14

Muscarinic cholinergic receptors

5 types or receptors--result depends on end-organ body-wide
study basic result

15

M2 Muscarinic cholinergic receptors

(mostly parasympathetic) lower heart rate, pupillary constriction, GI contraction, bronchoconstriction, ^ erection,

16

Autonomic NS by anatomy

sym: short pre, long post (exception adrenal--leave SC no synapse until adrenal cortex)
para: long pre, short post

17

Adrenergic receptors

1. Alpha
Alpha 1
Alpha 2
2. Beta
Beta 1
Beta 2

18

Important Alpha adrenergic receptor clinically

Alpha 1 -- vasoconstriction, pupil dialation

19

Important Beta adrenergic receptor clinically for heart

Beta 1 -- heart (beta blockers)

20

Important Beta adrenergic receptor clinically for lungs

Beta 2 -- relax lungs--blocks bronchodilation--beta stimulation

21

glycogen broken down into

glucose by liver

22

Atenalol

more Beta 1 effect--used to be non-selective--now they're selective for Beta 1 or 2

23

mostly excitatory but sometimes inhibitory

sympathetic NS

24

cholinergic activation mostly

all parasympathetci pre/post ganglionic receptors are cholinergic, but not all cholinergic receptors are parasympathetic

25

cilliary muscles

parasympathetic--cholinergic--stretch lens

26

anticholinergic side effects

atrophin--dry mouth, blurry vision (aka parasympatholitic w/ exceptions in parasympathetic system)

27

sympathomimetic

drug that mimics sympathetic system

28

Sympatholitic

lyse (anti-sympathetic drug)

29

small pupils

myosis

30

decreased sweating

anhydrosis

31

horner's syndrom

SPAM
Sunken eyeballs
Ptosis
Anhydrosis
Miosis

32

All postganglionic sympathetic nerves secrete norepinephrine except

1 sweat glands
2 piloerector muscles
3 some blood vessels

Secrete ACh

33

Blood vessels solely controlled by

Sympathetic NS-- constriction only