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MSA II > leg muscles > Flashcards

leg muscles Flashcards

1
Q

actions of TFL & nerve

A

flexes
medially rotates
abducts hip

superior gluteal nerve

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2
Q

sartorius actions and nerve

A

flex, lateral rotation

FEMORAL

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3
Q

rectus femoris

A

AIIS

tibial tuberosity via common quadriceps tendon

extend knee
flex hip

femoral nerve

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4
Q

origin of vastus lateralis

A

proximal intertrochanteric line

anterior & inferior border greater trochanter

proximal 1/2 lateral lip linea aspera

gluteal tuberosity

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5
Q

origin of vastus medialis

A

distal 1/2 intertrochanteric line

medial lip linea aspera

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6
Q

adductor longus

A

ant surface of pubis at the crest and symphysis

middle 1/3 medial lip linea aspera

adduction and flex hip

obturator

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7
Q

adductor brevis

A

outer surface inferior ramus of pubis

distal 2/3 pectineal line
proximal 1/2 medial lip linea aspera

adduct and flex hip

obturator

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8
Q

origin of adductor magnus

A

inferior ramus of pubis
ramus of ischium
ischial tuberosity

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9
Q

insertion of adductor magnus

A

medial to gluteal tuberosity

middle of linea aspera

medial supracondylar line

adductor tubercle on medial condyle of femur

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10
Q

actions of adductor magnus

A

anterior fibres = adduct
posterior fibres = extend

OBTURATOR AND SCIATIC NERVE

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11
Q

Gracilis

A

inferior 1/2 pubic symphysis
medial margin inferior ramus of pubic bone

pes anserine

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12
Q

actions of gracilis

A

adduct hip

flex, medially rotate knee

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13
Q

biceps femoris origin

A

long head - ischial tuberosity, sacrotuberous ligament

short head - lateral lip linea aspera, proximal 2/3 lateral supracondylar line

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14
Q

biceps femoris insertion

A

lateral head of fibula
lateral tibia condyle

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15
Q

action and nerve bicep femoris

A

flex, laterally rotate knee
long head - lateral rotation of hip

long = tibial
short = peroneal

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16
Q

semimembranosus

A

ischial tuberosity

posteromedial aspect of medial condyle of tibia

(groove for semimembranosus)

flex and medially rotate knee

tibial

17
Q

semitendinosus

A

ischial tuberosity

pes anserine

flex / medially rotate knee

extends, assist in medial rotation of hip

tibial

18
Q

origin tibialis anterior

A

lateral condyle & proximal 1/2 lateral surface of tibia

19
Q

insertion tibialis anterior

A

medial/plantar surface of medial cuneiform
base of 1st metatarsal bone

20
Q

action and nerve tibialis anterior

A

flex and invert ankle joint

deep peroneal (fibular)

21
Q

extensor digitorum longus origin and insertion

A

lateral condyle of tibia
proximal 3/4 ant surface body of fibula

dorsal surface digits 2-5

22
Q

actions and nerve of extensor digitorum longus

A

extends MTP, IP joints of digits 2-5
assist in dorsiflexion and eversion

deep peroneal (fibular)

23
Q

extensor hallicus longus

A

middle half of anterior surface of fibula

base of distal phalanx big toe

24
Q

actions and nerve extensor hallucis longus

A

extend MTP & IP joint of big toe

assist in inversion of foot and dorsiflex ankle

deep peroneal (fibular)

25
Q

fibularis tertius

A

distal 1/3 anterior shaft of fibula

base of 5th metatarsal - dorsal surface

dorsiflex ankle
evert foot

deep peroneal

26
Q

which 2 muscles are innervated by superficial peroneal fibular nerve

A

fibularis (peroneus) brevis & longus

27
Q

origin of fibularis longus

A

lateral condyle of tibia

lateral proximal 2/3 and head of fibula

28
Q

fibularis longus insertion

A

lateral side base of 1st metatarsal

medial cuneiform bone

29
Q

actions and nerve of fibularis longus

A

everts foot
plantar flexion of ankle joint
depress head of 1st metatarsal

superficial peroneal

30
Q

fibularis brevis

A

distal 2/3 lateral surface of fibula

tuberosity of base of 5th metatarsal bone, lateral side

31
Q

actions and nerve of fibularis brevis

A

evert foot
plantar flexion of ankle

superficial peroneal

32
Q

gastrocnemius

A

medial and lateral condyles of femur

posterior surface of calcaneus

plantarflexion

tibial

33
Q

plantaris

A

distal part lateral supracondylar line on femur

posterior calcaneus

plantar flexion
weak knee flexion

TIBIAL

34
Q

soleus origin-

A

head of fibula posterior surface

proximal 1/3 fibula body

soleal line

middle of medial border of tibia

35
Q

soleus insertion

A

w gastroc tendon into posterior calcaneus

36
Q
A

MSA II (20 decks)

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