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
fibularis tertius
distal 1/3 anterior shaft of fibula base of 5th metatarsal - dorsal surface dorsiflex ankle evert foot deep peroneal
26
which 2 muscles are innervated by superficial peroneal fibular nerve
fibularis (peroneus) brevis & longus
27
origin of fibularis longus
lateral condyle of tibia lateral proximal 2/3 and head of fibula
28
fibularis longus insertion
lateral side base of 1st metatarsal medial cuneiform bone
29
actions and nerve of fibularis longus
everts foot plantar flexion of ankle joint depress head of 1st metatarsal superficial peroneal
30
fibularis brevis
distal 2/3 lateral surface of fibula tuberosity of base of 5th metatarsal bone, lateral side
31
actions and nerve of fibularis brevis
evert foot plantar flexion of ankle superficial peroneal
32
gastrocnemius
medial and lateral condyles of femur posterior surface of calcaneus plantarflexion tibial
33
plantaris
distal part lateral supracondylar line on femur posterior calcaneus plantar flexion weak knee flexion TIBIAL
34
soleus origin-
head of fibula posterior surface proximal 1/3 fibula body soleal line middle of medial border of tibia
35
soleus insertion
w gastroc tendon into posterior calcaneus
36