Hip Flashcards
Iliacus origin
Superior 2/3 of the iliac fossa, iliac crest, anterior sacroiliac and iliolumbar ligaments, ala of sacrum
Iliacus insertion
Tendon of psoas major, body of the femur
Iliacus nerve supply
Femoral n. L2-3
Iliacus function
Hip flexion
Psoas major origin
Sides of the vertebral body and corresponding intervertebral discs of T12-L5 and transverse processes of L1-L5
Psoas major insertion
Lesser trochanter of the femur
Psoas major nerve supply
L2-4
Psoas major function
Unilateral action: flexion of the hip Bilateral action: with the thigh fixed, the psoas major flexes the trunk
Sartorius origin
ASIS, upper aspect of iliac notch
Sartorius insertion
Proximal aspect of medial surface of tibia
Sartorius nerve supply
Femoral n. L2-3
Sartorius function
Flexion, abduction and lateral rotation of the hip, flexion of the knee
Gluteus maximus origin
Posterior gluteal line of the ilium, ilac crest, dorsum of the sacrum and coccyx, sacrotuberous ligament
Gluteus maximus insertion
Iliotibial tract, glutueal tuberosity of the femur
Gluteus maximus nerve supply
Inferior gluteal n. L5, S1, S2
Gluteus maximus function
Extension and lateral rotation of the hip
Semitendinosus origin
Ischial tuberosity
Semitendinosus insertion
Proximal aspect of medial surface of tibia
Semitendinosus nerve supply
Tibial portion of the sciatic n. L5, S1, S2
Semitendinosus function
Extension of the hip, flexion and medial rotation of the knee
Semimembranosus origin
Ischial tuberosity
Semimembranosus insertion
Medial condyle of the tibia
Semimembranosus nerve supply
Tibial portion of the sciatic nerve
Semimembranosus function
Extension of the hip, flexion and medial rotation of the knee
Biceps femoris origin
Long head: ischial tuberosity Short head: lateral lip of the linea aspera of the femur and lateral intermuscular septum
Biceps femoris insertion
Lateral aspect of the head of the fibula
Biceps femoris nerve supply
Long head: Tibial portion of the sciatic nerve Short head: peroneal portion of the sciatic nerve L5, S1, S2
Biceps femoris function
Extension of the hip, flexion and lateral rotation of the knee
Gluteus medius origin
Outer surface of the ilium between the anterior and posterior gluteal lines
Gluteus medius insertion
Greater trochanter of the femur
Gluteus medius nerve supply
Superior gluteal n. L4, L5, S1
Gluteus medius function
Abduction and medial rotation of the hip
Gluteus minimus origin
Outer surface of the ilium between the anterior and inferior gluteal lines
Gluteus minimus insertion
Greater trochanter of the femur
Gluteus minimus nerve supply
Superior gluteal n. L4, L5, S1
Gluteus minimus function
Abduction and medial rotation of the hip
Tensor facia lata origin
ASIS, anterior aspect of the outer lip of the iliac crest
Tensor facia lata insertion
Iliotibial tract approximately 1/3 down the thigh
Tensor facia lata nerve supply
Superior gluteal n. L4, L5, S1
Tensor facia lata function
Abduction, flexion, and medial rotation of the hip, extension of the knee
Adductor magnus origin
Inferior rami of the pubis and ischium, ischial tuberosity
Adductor magnus insertion
A line from the greater trochanter to the linea aspera of the femur, linea aspera, adductor tubercle, medial supracondylar line of the femur
Adductor magnus nerve supply
Obturator and sciatic n. L2-4
Adductor magnus function
Adduction of the hip, upper portion of the muscles assist in hip flexion, lower portion assists in hip extension
Adductor longus origin
Anterior aspect of the pubis
Adductor longus insertion
Linea aspera along the middle third of the femur
Adductor longus nerve supply
Obturator n. L2-4
Adductor longus function
Adduction and flexion of the hip
Adductor brevis origin
Inferior ramus of the pubis
Adductor brevis insertion
A line from the linea aspera to the lesser trochanter, upper portion of the linea aspera
Adductor brevis nerve supply
Obturator n. L2-4
Adductor brevis function
Adduction, flexion and medial rotation of the hip
Pectineus origin
Body and ramus of the pubis
Pectineus insertion
Proximal aspect of the medial surface of the tibia
Pectineus nerve supply
Femoral n. L2-4
Pectineus function
Adduction, flexion and medial rotation of the hip
Gracilis origin
Body and ramus of the pubis
Gracilis insertion
Proximal aspect of the medial surface of the tibia
Gracilis nerve supply
Obturator n.L2-3
Gracilis function
Adduction, flexion and medial rotation of the hip
Piriformis origin
Anterior surface of the sacrum, sacrotuberous ligament
Piriformis insertion
Greater trochanter of the femur
Piriformis nerve supply
Sacral nerves 1 and 2
Piriformis function
Lateral rotation of the hip, abduction of the flexed hip
Gemellus superior origin
Ischial spine
Gemellus superior insertion
Greater trochanter of the femur
Gemellus superior nerve supply
Nerve to obturator internus L5, S1, S2
Gemellus superior function
Lateral rotation of the hip, abduction of the flexed hip
Gemellus inferior origin
Ischial tuberosity
Gemellus inferior insertion
Greater trochanter of the femur
Gemellus inferior nerve supply
Nerve to the quadratus femoris L4, L5, S1
Gemellus inferior function
Lateral rotation of the hip, abduction of the flexed hip
Obturator internus origin
Obturator membrane and foramen, inner surface of the pelvis, inferior rami of the pubis and ischium
Obturator internus insertion
Greater trochanter of the femur
Obturator internus nerve supply
Nerve to obturator internus L5, S1, S2
Obturator internus function
Lateral rotation of the hip, abduction of the flexed hip
Obturator externus origin
Rami of the pubis and ischium, outer surface of the obturator membrane
Obturator externus insertion
Trochanteric fossa of the femur
Obturator externus nerve supply
Obturator n. L4-5
Obturator externus function
Lateral rotation of the hip
Quadratus femoris origin
Ischial tuberosity
Quadratus femoris insertion
Quadrate tubercle of the femur
Quadratus femoris nerve supply
Nerve to the quadratus femoris L4, L5, S1
Quadratus femoris function
Lateral rotation of the hip
