lab lower limb muscles quiz 8 Flashcards
Sartorius
A: abducts the thigh
O: anterior superior iliac spine
I: medial aspect of proximal tibia
N: Femoral nerve L2 and L3
Gluteus minimus
A: abducts the thigh
O: external surface of ilium
I: anterior border of greater trochanter of femur
N: superior gluteal nerve L4-S1
Gracilis
A: Adducts thigh
O: body of pubis
I: medial surface of tibia
N: obturator nerve L2 and L3
Adductor longus
A: Adducts thigh
O: pubis near pubic symphysis
I: linea aspera
N: obturator nerve L2-L4
Extensor digitorum longus
A: dorsiflexes foot
O: lateral condyle of tibia
I: middle and distal phalanges of toes II-V
N: deep fibular nerve L5 and S1
Tibialis Anterior
A: dorsiflexion
O: lateral condyle of tibial shaft
I: tendon into first metatarsal bone
N: deep fibular nerve L4 and L5
Gastrocnemius
A: plantar flexes foot
O: two heads from medial & lateral condyles of femur
I: posterior calcaneus via calcaneal tendon
N: Tibial nerve S1 and S2
Soleus
A: plantar flexes foot
O:interosseous membrane
I: posterior calcaneus via calcaneal tendon
N: Tibial nerve S1 and S2
Flexor digitorum longus
A: plantar flexes foot
O: posterior tibia
I: tendon inserts into distal phalanges of toes II-V
N: tibial nerve L5-S2
Fibularis (peroneus) longus
A: plantar flexes foot
O: head of fibula
I: tendon inserts into medial cuneiform
N: superficial fibular nerve L5 and S1
Semimembranosus
A: extends thigh
O: ischial tuberosity
I: medial condyle of tibia
N: Sciatic nerve tibial nerve portion L5-S2
Semitendinosus
A: extends thigh
O: ischial tuberosity
I: medial aspect of upper tibial shaft
N: sciatic nerve tibial nerve portion L5-S2
biceps femoris
A: extends thigh
O: ischial tuberosity
I: tendon inserts into head of fibula
N: sciatic nerve tibial nerve L5-S2
Gluteus maximus
A: extends thigh
O: coccyx or sacrum
I: gluteal tuberosity of femur
N: inferior gluteal nerve L5-S2
