muscles Flashcards

1
Q

supraspinatus

A

O: supraspinous fossa of scap
I: greater tubercle of humerus (sup facet)
A: abduct shoulder
FD: laterally

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2
Q

infraspinatus

A

O: infraspinous fossa of scap
I: greater tubercle of humerus (mid facet)
A: laterally rotate shoulder
FD: laterally

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3
Q

teres minor

A

O: upper 2/3 of lateral border of scap
I: greater tubercle of the humerus (inf facet)
A: laterally rotate shoulder
FD: supralaterally

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4
Q

subscapularis

A

O: subscapular fossa of the scap
I: lesser tubercle of the humerus
A: medially rotate shoulder
FD: supralaterally

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5
Q

biceps brachaii

A

O: SH: coracoid process of scap
LH: supraglenoid tubercle of scap
I: radial tuberosity & bicipital aponeurosis
A: flex elbow, flex shoulder, supinate forearm
FD: inferior

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6
Q

extensor carpi radialis brevis

A

O: common extensor tendon from lateral epicondyle
I: base of 3rd metacarpal
A: extend & abduct wrist
FD: inferior

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7
Q

extensor carpi radialis longus

A

O: distal 1/3 of the lateral supracondylar ridge of the humerus
I: base of 2nd matracarpal
A: extend & adduct wrist
FD: inferiorly

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8
Q

extensor carpi ulnaris

A

O: common extensor tendon from lateral epicondyle of humerus
I: base of 5th metacarpal
A: extend & adduct wrist
FD: inframedially

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9
Q

flexor carpi radialis

A

O: common flexor tendon from medial epicondyle of the humerus
I: base of 2nd & 3rd metacarpals
A: flex & abduct wrist
FD: infralaterally

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10
Q

flexor carpi ulnaris

A

O: Humeral head: common flexor tendon from medial epicondyle
ulnar head: posterior surface of prox 2/3 of ulna
I: pisiform, hook of hamate & base of 5th metacarpal
A: flex wrist and adduct wrist
FD: inferior

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11
Q

tibialis posterior

A

O: posterior shaft of the fibula/tibia to soleal line & interosseous membrane
I: navicular tuberosity, cuneiforms, sustentaculum tali, base of 2-4 metatarsals
A: plantar flex & evert ankle
FD: inframedially on leg & laterally on plantar syrface of the foot

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12
Q

gastrocnemius

A

O: posterior surfaces of condyles of the femur
I: calcaneus via calcaneal tendon
A: platarflex ankle with knee extended & flexes knee
FD: inferior

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13
Q

soleus

A

O: soleal line, proximal posterior tibia & fibula, posterior head of fibula
I: calcaneus via calcaneal tendon
A: plantarflexion with knee flexed
FD: inferior

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14
Q

popliteus

A

O: lateral condyle of femur & lateral meniscus
I: posterior aspect of tibia, superior to soleal line
A: weakly flexes knee, unlocks knee
FD: inframedially

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15
Q

rectus femoris

A

O: AIIS & ilium surface of acetabulum
I: tibial tuberosity via patella and patellar ligament
A: flex hip & extend knee
FD: inferior

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16
Q

vastus lateralis

A

O: lateral lip on linea aspera & greater trochanter
I: tibial tuberosity vis patella & patella ligament
A: extends knee
FD: inframedially

17
Q

vastus medialis

A

O: medial lip of linea aspera & intertrochanteric line
I: tibial tuberosity via patella & patellar ligament
A: extends knee
FD: infralaterally

18
Q

flexor carpi radialis

A

O: common flexor tendon from medial epicondyle of humerus
I: base of 2nd & 3rd metacarpals
A: flex & abduct wrist
FD: infralaterally

19
Q

flexor carpi ulnaris

A

O: Humeral head: common flexor tendon from medial epicondyle of humerus
ulnar head: posterior surface of prox 2/3 of the ulna
I:pisiform, hook of hamate & base of 5th metacarpal
A: flex wrist & adduct wrist
FD: inferior

20
Q

extensor carpi ulnaris

A

O: common extensor tendon from lateral epicondyle of humerus
I: base of 5th metacarpal
A: extend & adduct wrist
FD: inframedially

21
Q

glute max

A

O: posterior iliac crest, dorsal sacrum & coccyx and sacrotuberous ligament
I: gluteal tuberosity and blends into IT band via greater trochanter
A: hip extension & external rotation
FD: infralateral

22
Q

glute med

A

O: external ilium between anterior and posterior gluteal lines
I: lateral surface of greater trochanter
A: abduct and medially rotate hip
FD: infralateral

23
Q

sartorius

A

O: ASIS
I: proximal medial shaft of the tibia at pes anserine tendon
A: flex hip, flex knee, abduct and externally rotate hip
FD: inframedial