Muscle Relaxants Flashcards

0
Q

skeletal muscle relaxant are used as adjunct to __________

A

anaesthetics

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1
Q

define skeletal muscle relaxant

A

relax skeletal muscles

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2
Q

classification of skeletal muscle relaxant

A

central acting

peripherally acting

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3
Q

PERIPHERALLY ACTING skeletal muscle relaxants can be divided in to

A
neuromuscular blockers(NMB)
direct skeletal muscle relaxant
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4
Q

neuromuscular blockers(NMB) can further be subdivided into

A

competitive

non-competitive

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5
Q

competitive neuromuscular blockers(NMB) are aka _________

A

curariform drugs

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6
Q

name 3 CENTRAL skeletal muscle relaxants (DiMaG)

A

diazepam
mef-enesin
guiaf-enesin

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7
Q

name 3 COMPETITIVE neuromuscular blockers (TA2)

A

tubo-curaine
al-curonium
atra-curonium

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8
Q

name 2 NON-COMPETITIVE neuromuscular blockers (DaS)

A

deca-methonium

succinyl-choline

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9
Q

name 2 DIRECT skeletal muscle relaxant (DeeP)

A

dantrolene

phenytoin

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10
Q

centrally action skeletal muscle relaxants aka ___________

A

skeletal muscle spasmolytics

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11
Q

centrally action skeletal muscle relaxants act by interfering with _______ & _________

A

internuntial pathways in spinal cord

reticular activating system

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12
Q

mefenesin & guaia-fenesin act as ______ agonist

A

glycine

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13
Q

mefenesin & guaia-fenesin antagonise which convulsions?

A

stry-chnine

tetanus

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14
Q

stry-chnine & tetanus convulsions can be antagonised by _________

A
  • centrally acting skeletel muscle relaxants(mefenesin & guaia-fenesin )
  • methocarbamol
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15
Q

diazepam cause paralysis of muscles through ___________

A

gaba facilitation

16
Q

diazepam is used to antagonis convulsions of ____________

A

picrotoxin

17
Q

picrotoxin convulsions can be antagonised by

18
Q

other 2 names of competitive NMB

A

curariform drugs

‘‘non-depolarizing” NMB

19
Q

tell the type and duration of paralysis caused my competitive NMBs

A

flaccid

30-60 min

20
Q

order of paralysis caused by competitive NMB

A

eyes>neck>limb>diaphragm

21
Q

noncompetitive NMB are aka ____________

A

depolarizing NMB

22
Q

the paralysis caused by non-competitive NMB are preceded by _________

A

muscular twichings

23
Q

type and duration of paralysis causes by non-competitive NMB

A

tonic

5-15 minutes

24
why non-competitive NMB have shorter duration
as they are inactivated by pseudoCHE in liver
25
effect of antiCHE agents on competitive NMB non-competitive NMB
antagonism | synergistic effect
26
cat is most sensitive to competitive or non-competitive NMBs
non-competitive NMBs
27
MOA of dantrolene(direct acting skeletal muscle relaxant)
interfere with release of Ca ions from sarcoplasmic reticulum of muscle fibres
28
MOA of phenytoin(direct acting skeletal muscle relaxant)
interfere with function of ACh at motor end plate
29
south american arrow poison is also known as
tubo-curaine(competitive NMB)
30
MOA of cobra snak venom & clostridial toxin
prevent ACh rlease from motor nerve endings
31
name the two cobra snake venoms
a-bungaro-toxin | b-bungarotoxin
32
cobra snake venom are _______toxic
neuro