Describe the origin, insertion, and action of the muscles that invery and evert

Question

Describe the origin, insertion, and action of the muscles that invery and evert the foot.
How can pressure increase around injured muscles and what effect does this have on the regional anatomy
Describe the location of each of these muscles: a- sartorius b- semitendeniosus c- psoas major d- adductor magnus e- gracilis
Describe the origin, insertion, and action of the muscles that invery and evert the foot.
How can pressure increase around injured muscles and what effect does this have on the regional anatomy
Describe the location of each of these muscles: a- sartorius b- semitendeniosus c- psoas major d- adductor magnus e- gracilis

How can pressure increase around injured muscles and what effect does this have on the regional anatomy
Describe the location of each of these muscles: a- sartorius b- semitendeniosus c- psoas major d- adductor magnus e- gracilis

Explanation / Answer

1) The muscles that invert and evert the foot are the tibialis posterior and tibialis anterior muscles. The tibialis posterior is located in the deep posterior compartment of the leg. It inserts into navicular bone which is found in feet and medial cuneiform bone. It helps in inversion of the foot.

The tibialis anterior is situated in the lateral side of the tibia. It inserts into cuneiform and first metatarsal bones of the foot. It helps in dorsiflexion of the foot.

2) When a muscle is injured it results into inflammation. This can cause a layer of tissue not to stretch and thus blood gets into the muscle and can cause hemorrhage and fractures.

3) The location of these muscles are:

a) Sartorius: It is the longest muscle that runs down the length of the thigh in the anterior compartment.

b) Semitendeniosus: It is one of the three hamstring muscles located at the back of the thigh.

c) Psoas major: It is located on the side of the lumbar region of the vertebral column. It is the deep seated muscle connecting the lumbar vertebrae to the femur.

d) Adductor magnus: It is located on the lateral side of the thigh and helps to move the thigh away from the midline of the body.

e) Gracilis: It is one of the groin muscles. It starts on the pubic bone and extends down to the shinbone.

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