AP1 Pelvis/Thigh/Leg Muscles

Gracilis

ORIGIN: Pubis INSERTION: Pes Anserine Tendon ACTION: AD-duction of thigh at hip joint Flexion of thigh at hip joint Anterior Tilt of pelvis at hip joint Flexion of leg at knee joint

Adductor Longus

ORIGIN: Pubis INSERTION: Linea Aspera of the Femur ACTION: AD-duction of thigh at hip joint Flexion of thigh at hip joint Anterior Tilt of pelvis at hip joint

Adductor Magnus

ORIGIN: Pubis and Ischium INSERTION: Linea Aspera of the Femur ACTION: AD-duction of thigh at hip joint Extention of thigh at hip joint Posterior Tilt of pelvis at hip joint

Pectineus

ORIGIN: Pubis INSERTION: Proximal Posterior Shaft of the Femur ACTION: AD-duction of thigh at hip joint Flexion of thigh at hip joint Anterior Tilt of pelvis at hip joint

Quadriceps femoris group (The Quads)

4 muscles make up the Quadriceps Femoris Group: Rectus Femoris Vastus Lateralis Vastus Medialis Vastus Intermedius All end at the Tibial Tuberocity, all extension of leg at the knee joint & most attach from the Linea Aspera of Femur. Rectus Femoris is the only one that is a hip flexor.

Hamstring Muscles Group

All connect at the Ischial Tuberosity

Adductors of the Thigh Group

All flexes thigh at the hip joint, all AD-duct thigh at the hip joint and all anteriorly tilt the pelvis at the hip joint. "Peanut Butter Leaves Me Greasy" Pectineus Adductor Brevis Adductor Longus Adductor Magnus Gracils

Fibularis Longus

ORIGIN: Proximal Lateral Fibula INSERTION: Medial Foot ACTIONS: Plantar flex foot at ankle Evert foot at subtalar

Adductor Brevis

ORIGIN: Pubis INSERTION: Linea Aspera ACTION: AD-duction of thigh at hip joint Flexion of thigh at hip joint Anterior Tilt of pelvis at hip joint

Rectus Femoris

ORIGIN: AIIS INSERTION: Tibial Tuberosity ACTION: Flexion of thigh at hip joint Extension of leg at knee joint Anterior tilt of pelvis at the hip joint

Sartorius

ORIGIN: ASIS INSERTION: Pes Anserine Tendon ACTION: Flexion of thigh at hip joint AB-duction of thigh at hip joint Medial rotation of thigh at hip joint Flexion of leg at knee joint Anterior tilt of pelvis at the hip joint

Tensor Fasciae Latae ("TFL")

ORIGIN: ASIS and the anterior iliac crest INSERTION: Iliotibial Band (ITB) ACTION: Flexion of thigh at hip joint AB-duction of thigh at hip joint medial rotation of thigh at hip joint anterior tilt of pelvis at the hip joint

Piriformis

ORIGIN: Anterior Sacrum INSERTION: Greater Trochanter of the Femur ACTION: Lateral rotation of the thigh at the hip joint

Vastus Intermedius

ORIGIN: Anterior shaft and Linea Aspera of the Femur INSERTION: Tibial Tuberosity ACTION: Extension of leg at knee joint

PSOAS MAJOR

ORIGIN: Anterolateral Lumbar Spine INSERTION: Lesser Trochanter of the Femur ACTION: Flexion of the thigh at the hip joint Lateral rotation of thigh at the hip joint Flexion of trunk at spinal joints Lateral flexion of trunk at spinal joint Anterior tilt of pelvis at hip joint

Fibularis Brevis

ORIGIN: Distal Lateral Fibula Insertion: Lateral foot ACTIONS: Plantar flex foot at ankle Evert foot at subtalar

Gluteus Minimus

ORIGIN: External Ilium INSERTION: Greater Trochanter of the Femur ACTION: AB-duction of thigh at hip joint extension of thigh at hip joint flexion of thigh at hip joint medial rotation of thigh at hip joint lateral rotation of thigh at hip joint posterior tilt of pelvis at hip joint anterior tilt of pelvis at hip joint

Gluteus Medius

ORIGIN: External Ilium INSERTION: Greater Trochanter of the Femur ACTION: AB-duction of thigh at hip joint extension of thigh at hip joint flexion of thigh at hip joint medial rotation of thigh at hip joint lateral rotation of thigh at hip joint posterior tilt of pelvis at hip joint anterior tilt of pelvis at hip joint depression of pelvis at hip joint

ILIACUS

ORIGIN: Iliac Fossa INSERTION: Lesser trochanter of the femur. ACTIONS: Flexion of thigh at hip joint Lateral rotation of thigh at hip joint Anterior tilt of pelvis at hip joint

Biceps Femoris

ORIGIN: Ischial Tuberosity INSERTION: Head of the Fibula ACTION: Flexion of Leg at Knee Joint Extension of thigh at Hip Joint Posterior tilt of pelvis at Hip Joint

Semimembranosus

ORIGIN: Ischial Tuberosity INSERTION: Medial Condyle of the Tibia ACTION: Flexion of leg at knee joint Extension of thigh at hip joint Posterior Tilt of pelvis at hip joint

Semintendinosus

ORIGIN: Ischial Tuberosity INSERTION: Pes Anserine tendon ACTION: Flexion of leg at knee joint Extension of thigh at hip joint Posterior Tilt of pelvis at hip joint

Vastus Lateralis

ORIGIN: Linea Aspera of the Femur INSERTION: Tibial Tuberosity ACTION: Extension of leg at knee joint

Vastus Medialis

ORIGIN: Linea Aspera of the Femur INSERTION: Tibial Tuberosity ACTION: Extension of leg at knee joint

Gastrocnemius

ORIGIN: Medial and Lateral Femoral Condyles INSERTION: Calcaneus ACTIONS: Plantar flex Foot at Ankle Flex Leg at Knee Joint

Gluteus Maximus

ORIGIN: Posterior Iliac Crest, Posterior Sacrum, and the Coccyx INSERTION: Iliotibial Band (ITB) and the Gluteal Tuberocity of the Femur ACTION: Extension of thigh at hip joint Adduction of thigh at hip joint Abduction of thigh at hip joint Lateral rotation of thigh at hip joint Posterior tilt of pelvis at the hip joint

Soleus

ORIGIN: Posterior Tibia, Fibula INSERTION: Calcaneus ACTIONS: Plantar flex Foot at Ankle

Tibialis Anterior

ORIGIN: Proximal Anterior Shaft of Tibia INSERTION: Medial Foot ACTIONS: Dorsiflex foot at ankle joint Invert foot at subtalar