muscle actions Flashcards by M. McCarthy

Q

upward rotators

A

lower traps, upper traps, serratus anterior

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Q

downward rotators

A

pec minor, lats, levator scapulae, rhomboids

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Q

elevators

A

levator scapulae, Upper trap, rhomboids

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Q

depressors

A

pec minor, pec major, lats dorsi, lower trap

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Q

protraxtors

A

pec minor, pec major, serratus anterior

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Q

retractors

A

lower trap, middle trap, rhomboids

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Q

nerve supply to pec major

A

lateral pectoral N (C5/7)

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Q

nerve supply to pec minor

A

med pectoral N (C8/T1)

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Q

nerve supply to lower trap, mid trap, upper trap

A

spinal accessory N

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Q

nerve supply to lat dorsi

A

thoracodorsal N (C6-8)

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Q

levator scapulae

A

dorsal scapular N (C5)

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Q

rhomboids

A

dorsal scapular N C5

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Q

action of subscapularis

A

adduct and internally rotate

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Q

subscapularis nerve supply

A

supscapular N

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Q

infrapsinatus action

A

ER (and ABD)

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Q

infraspinatus nerve supply

A

suprascapular N

Q

supraspinatus nerve supply

A

suprascapular N

Q

supraspinatus motion

A

ER and ABD

Q

teres major N

A

subscapular N

Q

teres major action

A

extension, horizontal abd, add, IR

Q

teres minor N

A

axillary

Q

teres minor action

A

extension, horizontal abd, abduction, ER

Q

GHJ capsular pattern

A

ER>ABD>IR

Q

elbow capsular pattern

A

flex>ext

Q

forarm capsular pattern

A

pronation=supination

Q

wrist capsular pattern

A

flex=ext

Q

hand and CMC jts capsular pattern

A

CMC jt 1: abd and ext

equally restricted in all directions

Q

hip capsular pattern

A

IR>flex>add; max loss of ext

Q

knee capsular pattern

A

flex>ext

Q

ankle capsular pattern

A

PF>ext

Q

subtalar capsular pattern

A

restricted varus motion

Q

mid tarsal jt capsular pattern

A

DF>PF> abd> med rot