Muscles of the Anterior Thigh and Inner Hip

muscles that make up the quadriceps femoris?

rectus femoris, vastus lateralis, vastus medialis, vastus intermedius

rectus femoris

rectus femoris origin

anterior inferior iliac spine

rectus femoris insertion

patella via quadriceps tendon and then tibial tuberosity via patellar ligament

rectus femoris action

extends leg at knee joint; flexes thigh at hip joint

rectus femoris innervation

femoral nerve

vastus lateralis

vastus lateralis origin

greater trochanter and linea aspera of femur

vastus lateralis insertion

patella via quadriceps tendon and then tibial tuberosity via patellar ligament

vastus lateralis action

extends leg at knee joint

vastus lateralis innervation

femoral nerve

vastus medialis

vastus medialis origin

linea aspera of femur

vastus medialis insertion

patella via quadriceps tendon and then tibial tuberosity via patellar ligament

vastus medialis action

extends leg at knee joint

vastus medialis innervation

femoral nerve

vastus intermedius

vastus intermedius origin

anterior and lateral surfaces of body of femur

vastus intermedius insertion

patella via quadriceps tendon and then tibial tuberosity via patellar ligament

vastus intermedius action

extends leg at knee joint

vastus intermedius innervation

femoral nerve

tensor fasciae latae

tensor fasciae latae origin

Lateral surface of anterior iliac crest and anterior superior iliac spine.

tensor fasciae latae insertion

Tibia by way of iliotibial tract.

tensor fasciae latae action

Flexes and abducts hip joint.

tensor fasciae latae innervation

superior gluteal nerve

sartorius

sartorius origin

Anterior superior iliac spine.

sartorius insertion

Medial surface of body of tibia.

sartorius action

Weakly flexes leg at knee joint; weakly flexes, abducts, and laterally rotates thigh at hip joint

sartorius innervation

femoral nerve

iliopsoas muscles

iliacus, psoas major, psoas minor

iliacus

iliacus origin

Iliac fossa and sacrum.

iliacus insertion

With psoas major into lesser trochanter of femur.

iliacus action

Psoas major and iliacus muscles acting together flex thigh at hip joint, rotate thigh laterally, and flex trunk on hip as in sitting up from supine position

iliacus innervation

femoral nerve

psoas major

psoas major origin

Transverse processes and bodies of lumbar vertebrae.

psoas major insertion

With iliacus into lesser trochanter of femur.

psoas major action

Psoas major and iliacus muscles acting together flex thigh at hip joint, rotate thigh laterally, and flex trunk on hip as in sitting up from supine position

psoas major innervation

Lumbar spinal nerves L2-L3.

psoas minor

psoas minor origin

T12 vertebra, L1 vertebra, T12-L1 intervertebral disc/fibrocartilage

psoas minor insertion

Pubis

psoas minor action

flexion of lumbar vertebral column

psoas minor innervation

L1 spinal nerve

adductor group muscles

adductor magnus, adductor longus, adductor brevis, pectineus, gracilis

adductor magnus

adductor magnus origin

Inferior ramus of pubis and ischium to ischial tuberosity.

adductor magnus insertion

Linea aspera of femur.

adductor magnus action

Adducts thigh at hip joint and rotates thigh; anterior part flexes thigh at hip joint, and posterior part extends thigh at hip joint.*

adductor magnus innervation

Obturator and tibial nerve from sciatic nerve.

adductor longus

adductor longus origin

Pubic crest and pubic symphysis.

adductor longus insertion

Linea aspera of femur.

adductor longus action

Adducts and flexes thigh at hip joint and rotates thigh.*

adductor longus innervation

Obturator nerve

adductor brevis

adductor brevis origin

Inferior ramus of pubis.

adductor brevis insertion

Superior half of linea aspera of femur.

adductor brevis action

Adducts and flexes thigh at hip joint and rotates thigh

adductor brevis innervation

Obturator nerve.

pectineus

pectineus origin

Superior ramus of pubis.

pectineus insertion

Pectineal line of femur, between lesser trochanter and linea aspera.

pectineus action

Flexes and adducts thigh at hip joint.

pectineus innervation

femoral nerve

gracilis

gracilis origin

Body and inferior ramus of pubis.

gracilis insertion

Medial surface of body of tibia

gracilis action

Adducts thigh at hip joint, medially rotates thigh, and flexes leg at knee joint.

gracilis innervation

Obturator nerve.

Iliotibial tract

Patellar ligament

Quadriceps tendon

Inguinal ligament

femoral nerve, femoral artery, femoral vein, greater saphenous

Vasculature L → M