Muscle OIA Flashcards
Rectus Abdominus
o: pubic crest and pubic tubercle
i: costal cartilage of ribs 5-7, xiphoid process
a: flexes spine
Gluteus Medius
o: gluteal surface
i: greater trochanter
a: abducts hip; medially and laterally rotates hip
Sartorius
o: anterior superior iliac spine
i: pes anserinus
a: flexes and laterally rotates hip; flexes knee
Gracilis
o: ischiopubic ramus
i: pes anserinus
a: adducts hip; flexes knee
semitendinosus
o: ischial tuberosity
i: pes anserinus
a: flexes knee, extends hip
gastrocnemius
o: lateral and medial condyles of the femur
i: calcaneal tuberosity via calcaneal tendon
a: flexes knee plantar flexes foot
Flexor Hallucis Longus
o: posterior surface of fibula
i: 1st digit
a: flexes 1st digit
Tibialis anterior
o: lateral surface of tibia
i: medial cuneiform and 1st metatarsal
a: dorsiflexes and inverts foot
Peroneus (fibularis) longus
o: lateral surface of fibula
i: medial cuneiform and 1st metatarsal
a: plantar flexes and everts foot
lumbosacral plexus
innervation: lower limb
femoral nerve
anterior thigh
sciatic nerve
posterior thigh
tibial nerve
posterior lower leg
common fibular (peroneal) nerve
lateral and anterior lower leg
