Hip Muscles Flashcards
Iliacus
O: iliac fossa and sacrum
I: lesser trochanter of femur
Action: anterior pelvic tilt; NWB: hip flexion; WB: controls hip extension
In: femoral nerve L2-3
Art: iliolumbar artery from internal iliac artery
Psoas major
O: transverse process and body of L1-5 and T12
I: lesser trochanter of femur
A: lumbar flexion; NWB: hip flexion; WB: decelerates hip internal rotation and controls hip extension
In: L1-3
Art: iliolumbar artery from internal iliac artery
Rectus femoris
O: anterior inferior iliac spine (AIIS)
I: tibial tuberosity via patellar ligament
A: knee extension; NWB: hip flexion; WB: controls hip extension
In: femoral nerve L2-4
Art: femoral artery and branches from the profunda femoral artery
Sartorius
O: ASIS I: upper part medial surface of tibia A: knee flexion, lateral rotation; NWB: hip flexion, abduction, external rotation; WB: controls hip extension, adduction, internal rotation In: femoral nerve L2-3 Art: branches from femoral artery
Pectineus
O: pectineal line of pubis
I: upper half pectineal line of the femur
A: NWB: hip Flexion, adduction, internal rotation; WB: controls hip extension, adduction, external rotation
In: femoral nerve L2-3
Art: branches from the internal iliac and profunda femoral artery
Gracilis
Origin: inferior Ramus of pubis
I: upper part medial surface of the tibia
A: NWB: hip flexion, adduction, internal rotation; WB: controls hip extension, abduction, external rotation
In: obturator nerve L2-3
Art: obturator artery from the internal iliac artery
Adductor longus
O: inferior Ramus of pubis I: middle 1/3 of posterior femur A: NWB: hip flexion, adduction, internal rotation; WB: controls hip extension, abduction, external rotation In: obturator nerve L2-4 Art: femoral artery
Adductor brevis
O: inferior Ramus of pubis I: upper 1/2 of posterior femur A: NWB: hip flexion, adduction, internal rotation; WB: controls hip abduction, extension, external rotation In: obturator nerve L2-4 Art: femoral artery
Adductor magnus
O: anterior pubis and ischial tuberosity I: linea aspera and adductor tubercle A: NWB: hip extension, adduction; WB: controls hip abduction, flexion I: obturator and sciatic nerve L2-4-S1 Art: femoral artery
Semimembranosus
O: ischial tuberosity
I: medial condyle of tibia
A: knee flexion, medial rotation; NWB: hip extension; WB: controls hip flexion
In: tibial nerve L5-S2
Art: branches from the internal iliac, popliteal, and profunda femoris arteries
Semitendinosus
O: ischial tuberosity
I: upper part medial surface of tibia
A: knee flexion, medial rotation; NWB: hip extension; WB: controls hip flexion
In: tibial nerve L5-S2
Art: branches from the internal iliac, popliteal and profunda femoris arteries
Biceps femoris -long head
O: ischial tuberosity
I: lateral condyle of tibia and head of fibula
A: knee flexion, lateral rotation; NWB: hip extension, helps with external rotation; WB: controls hip flexion
In: sciatic nerve L5-S2
Art: branches from the internal iliac, popliteal and profunda femoris arteries
Gluteus minimus
O: ilium between anterior and inferior gluteal lines
I: anterior border of greater trochanter
A: NWB: hip abduction, internal rotation; WB: controls hip adduction, external rotation
In: superior gluteal nerve L5-S1
Art: superior gluteal artery from the internal iliac artery
Gluteus medius
O: anterior, lateral ilium
I: lateral surface of greater trochanter
A: NWB: hip extension, abduction, internal rotation (anterior fibers), external rotation (posterior fibers); WB: controls hip flexion, adduction, external rotation (anterior fibers), internal rotation (posterior fibers)
In: superior gluteal nerve L5-S1
Art: superior gluteal artery form the internal iliac artery
Gluteus Maximus
O: posterior ilium, sacrum, coccyx
I: gluteal tuberosity and iliotibial Tract
A: NWB: hip extension, abduction, external rotation; WB: controls hip flexion, adduction, internal rotation
In: inferior gluteal nerve L5-S2
Art: inferior gluteal artery from the internal iliac artery
