Origin and Insertion definitions Flashcards

The stationary attachment point of a muscle, which does not move during contraction.

The mobile attachment point of a muscle, which moves towards the origin during contraction.

A major muscle of the upper arm with origin at the shoulder and insertion on the forearm, facilitating arm flexion.

A hamstring muscle with origins at the ischium and femur, and insertion on the tibia and fibula, aiding knee flexion.

A muscle involved in leg extension, originating on the femur and inserting at the tibial tuberosity.

Movement of a limb away from the midline of the body, facilitated by muscles like the gluteus medius.

Movement of a limb towards the midline of the body, facilitated by muscles like the adductor longus.

A muscle that facilitates abduction, with origin on the ilium and insertion on the greater trochanter.

A muscle that facilitates adduction, with origin on the pubis and insertion on the femur.

A muscle supporting leg rotation, with origin on the sacrum and insertion on the greater trochanter.

A movement that decreases the angle between two body parts, such as bending the knee.

A movement that increases the angle between two body parts, such as straightening the leg.

A bony prominence on the femur where muscles like the gluteus medius and piriformis insert.

A bony prominence on the tibia where muscles like the vastus intermedius insert.

A triangular bone at the base of the spine, serving as an origin for muscles like the piriformis.