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Flashcards in ANS Deck (17):
1

does ANS integrate/receive input from CNS?

- receives some input from limbic system and other region of cerebrum

- regulated by hypothalamus and brain stem

2

excitatory effects of somatic motor neurons

somatic motor neurons ALWAYS have excitatory effect on muscle fibres
- inhibition req inhibition of motor neuron itself

3

ratio of motor neurons in somatic and ANS

somatic → single MN
ANS → 2 MN in series (pre and post ganglionic)

4

ACh

- ALWAYS excitatory in somatic
-excite/inhibitory in ANS

5

cholinergicR

nicR or musR
- ligand gated → quick depol

6

rocuronium

nicR blocker

7

musR

PNS AND sweat glands of SNS

8

ipratropium

musR blocker

9

musR targets

m1 → neural (CNS) excitatory
m2 → cardiac → inhib
m3 → glandular/SM → ex

10

a1

on BV → constricts

11

prazosin

a1 antagonist

12

a2

inhibit response (-ve FB on a1 presynaptic → decrease NA release)

13

b1

mainly in heart (but also kidneys) → ex

14

atenolol

b1 antagonist

15

b2

dilation of bronchial SM

16

salbutamol

b2 AGONIST

17

b3

lipolysis of fat cells