PSK Lower Body Muscles

Name & origin

Gastrocnemius: medial/lateral condyles of femur

Name & insertion

Gastrocnemius: calcaneus (Achilles tendon)

Name & function

Gastrocnemius: plantarflexion of foot

Name & origin

Rectus Femoris: illium (anterior inferior illiac spine AIIS + superior acetabular groove SAG)

Name & insertion

Rectus Femoris: patellar & tibial tuberosity

Name & function

Rectus Femoris: extension of the knee joint

Name & origin

Biceps Femoris: ischial tuberosity of Pelvis + linea aspera of femur (on posterior surface of femur)

Biceps → fitness → build muscle → calcium → milk → LAIT

(linea aspera + ischial tuberosity)

Name & insertion

Biceps Femoris: fibular head + lateral tibial condyle

Name & function

Biceps Femoris: the extension of the knee joint

Name & origin

Tibialis Anterior: upper portion of tibia

Name & insertion

Tibialis Anterior: Medial Cuneiform & first Metatarsal bones of foot

Name & function

Tibialis Anterior: dorsiflexion of the foot

Name & origin

Gluteus Maximus: crest of illium + sacrum + coccyx

SIC (sacrum, illium crest and coccyx)

Name & insertion

Gluteus Maximus: Greater Trochanter of Femur

Name & function

Gluteus Maximus: external rotation of the femur at the hip joint

Name & origin

Psoas Major: T12-L5 vertebrae and their transverse processes

Name & insertion

Psoas Major: lesser trochanter of the Femur

Name & function

Psoas Mahor: flexion of the hip joint (decreasing angle btwn the thigh and the torso)