Musc Sys - Origin, Insertion, Action - Lower - Adv A & P

Front

What is the action of the gluteus maximus muscle?

Back

Extends thigh at hip; laterally rotates thigh.

Front

What is the action of the rectus abdominis muscle?

Back

Compresses abdomen; flexes and rotates vertebral column.

Front

What is the action of the transverse abdominis muscle?

Back

Compresses the abdomen and stabilizes the pelvis.

Front

What is the insertion of the gastrocnemius muscle?

Back

Posterior surface of calcaneus.

Front

What action does the biceps femoris control?

Back

Flexes leg at knee; extends thigh at hip.

Front

What is the origin of the psoas major muscle?

Back

Transverse processes and bodies of lumbar vertebrae.

Front

What is the action of the quadriceps femoris muscle group?

Back

Extends leg at knee.

Front

What is the insertion of the tibialis anterior muscle?

Back

Medial cuneiform and base of the first metatarsal.

Front

What is the action of the iliopsoas muscle?

Back

Flexes thigh at hip.

Front

What is the origin of the rectus femoris muscle?

Back

Anterior inferior iliac spine (AIIS) and superior margin of the acetabulum.