Hip Joint/ Thigh and Gluteal Muscles

What is the origin of Psoas major?

L1-L3 lumbar vertebrae

What is the insertion of Psoas major?

Lesser trochanter of femur

What is the action of Psoas major?

Flexes thigh, ipsilateral lateral bending of vertebral column

What is the origin of Iliacus?

Iliac fossa

What is the insertion of Iliacus?

Lesser trochanter of femur

What is the action of Iliacus?

Flexes thigh

What is the innervation of Iliacus?

Femoral nerve

What is the origin of Psoas minor?

L2-L3

What is the action of Psoas minor?

Aids in flexing the trunk

What is the origin of Gluteus maximus?

Dorsal ilium, sacrum, coccyx

What is the insertion of Gluteus maximus?

Gluteal tuberosity of femur, iliotibial tract

What is the action of Gluteus maximus?

Extends thigh (especially when flexed), abducts, laterally rotates thigh

What is the innervation of Gluteus maximus?

Inferior gluteal nerve

What is the origin of Gluteus medius?

Lateral surface of ilium

What is the insertion of Gluteus medius?

Greater trochanter of femur

What is the action of Gluteus medius?

Abducts thigh, medially rotates thigh, stabilizes pelvis while walking

What is the innervation of Gluteus medius?

Superior gluteal nerve

What is the origin of Gluteus minimus?

Lateral surface of ilium

What is the insertion of Gluteus minimus?

Greater trochanter of femur

What is the action of Gluteus minimus?

Abducts thigh, medially rotates thigh, stabilizes pelvis while walking

What is the innervation of Gluteus minimus?

Superior gluteal nerve

What is the insertion of Piriformis?

Greater trochanter of femur

What is the action of Piriformis?

Abducts thigh, laterally rotates thigh

What is the innervation of Piriformis?

S1, S2, L5

What is the insertion of Gemellus superior?

Greater trochanter of femur

What is the action of Gemellus superior?

Laterally rotates thigh

What is the innervation of Gemellus superior?

L5, S1

What is the insertion of Obturator internus?

Greater trochanter of femur

What is the action of Obturator internus?

Abducts and laterally rotates thigh

What is the innervation of Obturator internus?

L5, S1

What is the insertion of Gemellus inferior?

greater trochanter of femur

What is the action of Gemellus inferior?

Laterally rotates thigh

What is the innervation of Gemellus inferior?

L5, S1

What is the insertion of Obturator externus?

greater trochanter of femur

What is the action of Obturator externus?

Laterally rotates thigh

What is the innervation of Obturator externus?

Obturator nerve

What is the insertion of Quadratus femoris?

greater trochanter of femur

What is the action of Quadratus femoris?

Laterally rotates thigh

What is the innervation of Quadratus femoris?

L5, S1

What is the origin of Sartorius?

ASIS

What is the insertion of Sartorius?

Medial side of proximal tibia

What is the action of Sartorius?

Flexes thigh and knee, abducts and laterally rotates thigh

What is the innervation of Sartorius?

Femoral nerve.

What is the origin of Vastus medialis?

Linea aspera, intertrochanteric line

What is the insertion of Vastus medialis?

Patella and tibial tuberosity

What is the action of Vastus medialis?

Extends leg

What is the innervation of Vastus medialis?

Femoral nerve

What is the origin of Vastus lateralis?

Intertrochanteric line, proximal half of linea aspera

What is the insertion of Vastus lateralis?

Patella and tibial tuberosity

What is the action of Vastus lateralis?

Extends knee, stabilizes patella

What is the innervation of Vastus lateralis?

Femoral nerve

What is the origin of Vastus intermedius?

Anterior and lateral portion of proximal femur

What is the insertion of Vastus intermedius?

Patella and tibial tuberosity

What is the action of Vastus intermedius?

Extends leg

What is the innervation of Vastus intermedius?

Femoral nerve

What is the origin of Rectus femoris?

AIIS

What is the insertion of Rectus femoris?

Patella and tibial tuberosity

What is the action of Rectus femoris?

Extends knee, flexes thigh at hip

What is the innervation of Rectus femoris?

Femoral nerve

What is the action of Adductor longus?

Adducts, flexes, medially rotates thigh

What is the innervation of Adductor longus?

Obturator nerve

What is the action of Adductor brevis?

Adducts, flexes, medially rotates thigh

What is the innervation of Adductor brevis?

Obturator nerve

What is the origin of Adductor magnus?

Ischial tuberosity, ischial ramus, inferior ramus of pubis

What is the insertion of Adductor magnus?

Linea aspera and adductor tubercle of femur

What is the action of Adductor magnus?

Adducts, flexes, medially rotates thigh

What is the innervation of Adductor magnus?

Obturator and sciatic nerves

What is the action of Pectineus?

Adducts, flexes, medially rotates thigh

What is the innervation of Pectineus?

Femoral nerve

What is the origin of Gracilis?

Body and inferior ramus of pubis

What is the insertion of Gracilis?

Medial surface of proximal tibia (pes anserinus)

What is the action of Gracilis?

Adducts and flexes thigh, flexes and medially rotates leg

What is the innervation of Gracilis?

Obturator nerve

What is the origin of Biceps femoris long head?

Ischial tuberosity

What is the origin of Biceps femoris short head?

Linea aspera

What is the insertion of Biceps femoris?

Head of fibula, lateral condyle of tibia

What is the action of Biceps femoris?

Extends thigh, flexes knee

What is the innervation of Biceps femoris?

Long head: sciatic nerve, short head: common fibular nerve

What is the origin of Semitendinosus?

Ischial tuberosity

What is the insertion of Semitendinosus?

Medial surface of proximal tibia (pes anserinus)

What is the action of Semitendinosus?

Extends thigh, flexes knee

What is the innervation of Semitendinosus?

Sciatic nerve

What is the action of Semimembranosus?

Extends thigh, flexes knee

What is the innervation of Semimembranosus?

Sciatic nerve

What is the origin of Tensor fasciae latae?

Iliac crest and ASIS

What is the insertion of Tensor fasciae latae?

Iliotibial tract / band

What is the action of Tensor fasciae latae?

Abducts, flexes, medially rotates thigh, tenses fascia lata

What is the innervation of Tensor fasciae latae?

Superior gluteal nerve

What is the origin of the Iliotibial band?

Iliac crest

What is the insertion of the Iliotibial band?

Lateral condyle of tibia

What is the action of the Iliotibial band?

Laterally supports the knee when the tensor fasciae latae contracts