Muscles Of Anterior Compartment Of Thigh

Front 1

Sartorius

Back 1

(Origin),Anterior superior iliac spine (ASIS)
(Insertion),Medial surface of body of the tibia
(Action),Flexes leg; abducts and flexes thigh; rotates thigh laterally
(Nerve supply),Femoral nerve
(Arterial supply),Femoral artery

Front 2

Tensor fascia latae

Back 2

(Origin),Iliac crest & (ASIS)
(Insertion),Tibia by way of iliotibial tract
(Action),Stabilizes torso on thigh when iliotibial tract is taut; flexes abducts thigh; rotates thigh medially
(Nerve supply),Superior gluteal nerve
(Arterial supply),Femoral artery

Front 3

Rectus femoris

Back 3

(Origin),Anterior inferior iliac spine (AIIS)
(Action),Flexes thigh; extends leg
(Nerve supply),Femoral nerve
(Arterial supply),Femoral artery

Front 4

Vastus lateralis

Back 4

(Origin),Greater trochanter; linear aspera of femur
(Action),Extends leg
(Nerve supply),Femoral nerve
(Arterial supply),Femoral artery

Front 5

Vastus medialis

Back 5

(Origin),Linear aspera of femur
(Action),Extends leg
(Nerve supply),Femoral nerve
(Arterial artery),Femoral artery

Front 6

Vastus intermedius

Back 6

(Origin),Anterolateral femoral shaft
(Action),Extends leg
(Nerve supply),Femoral nerve
(Arterial supply),Femoral artery

Front 7

Gracilis

Back 7

(Origin),Pubic bone
(Insertion),Medial surface of body of the tibia
(Action),Adducts thigh at the hip joint; flexes leg at the knee
(Nerve supply),Obturator nerve
(Arterial supply),Femoral artery branches & obturator artery

Front 8

Adductor longus

Back 8

Adductor longus
(Origin),Pubic bone
(Insertion),Linea aspera of femur
(Action),Adducts, flexes & rotates thigh medially
(Nerve supply),Obturator nerve
(Arterial supply),Femoral artery branches & obturator artery

Front 9

Pectineus

Back 9

(Origin),Pubic bone
(Insertion),Inferior to lesser trochanter of femur
(Action),Adducts, flexes & rotates thigh medially
(Nerve supply),Femoral nerve
(Arterial supply),Femoral artery branches & obturator artery

Front 10

Adductor magnus

Back 10

(Origin),Pubic bone & ischial tuberosity
(Insertion),Linea aspera of femur
(Action),Adducts, flexes & rotates thigh medially
(Nerve supply),Obturator & sciatic nerve
(Arterial supply),Femoral artery branches & obturator artery

Front 11

Piriformis

Back 11

(Origin),Anterior surface of sacrum
(Insertion),Greater trochanter of femur
(Action),Abducts & rotates extended thigh laterally; abducts thigh if hip is flexed; stabilizer of hip joint
(Nerve supply),Sacral nerves 1 & 2 (S1 and S2)
(Arterial supply),Superior and inferior gluteal arteries

Front 12

Superior & Inferior Gemellus

Back 12

(Origin),Spine of Ischium; ischial tuberosity
(Insertion),Greater trochanter of femur
Superior & Inferior Gemellus
(Action),Rotates extended thigh laterally
(Nerve supply),Lumbar nerves 4 & 5 (L4 and L5); Sacral nerve 1 (S1)
(Arterial supply),Superior and inferior gluteal arteries

Front 13

Quadratus femoris

Back 13

(Origin),Ischial tuberosity
(Insertion),Crest between greater and lesser trochanter of the femur
(Action),Stabilizes hip; rotates thigh laterally
(Nerve supply),Lumbar nerves 4 & 5 ( L4 and L5); Sacral nerve 1 (S1)
(Arterial supply),Superior and inferior gluteal arteries

Front 14

Gluteus maximus

Back 14

(Origin),Iliac crest; sacrum & coccyx
(Insertion),Iliotibial tract & gluteal tuberosity of the femur
(Action),Primary action: extensor of thigh; also rotates thigh laterally and abducts thigh
(Nerve supply),Inferior gluteal nerve
(Arterial supply),Superior and inferior gluteal arteries

Front 15

Gluteus medius

Back 15

(Origin),Posterior surface of ilium
(Insertion),Greate trochanter of the femur
(Action),Abducts & rotates thigh medially at the hip joint
(Nerve supply),Superior gluteal nerve
(Arterial supply),Superior and inferior gluteal arteries

Front 16

Gluteus minimus

Back 16

(Origin),Posterior surfacce of ilium
(Insertion),Greater trochanter of the femur
(Action),Abducts & rotates thigh medially at the hip joint
(Nerve supply),Superior gluteal nerve
(Arterial supply),Superior and inferior gluteal arteries