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The piriformis muscle (from Latin piriformis 'pear-shaped') is a flat, pyramidally-shaped muscle in the gluteal region of the lower limbs. It is one of the six muscles in the lateral rotator group . The piriformis muscle has its origin upon the front surface of the sacrum , and inserts onto the greater trochanter of the femur .
The lateral rotator group is a group of six small muscles of the hip which all externally (laterally) rotate the femur in the hip joint.It consists of the following muscles: piriformis, gemellus superior, obturator internus, gemellus inferior, quadratus femoris and the obturator externus.
The piriformis nerve, also known as the nerve to piriformis, is the peripheral nerve that provides motor innervation to the piriformis muscle. Structure [ edit ]
The piriformis is a muscle that runs down from the lower spine to the butt and to the top of the thighs. The muscle extends to each side of your body and is used in almost every movement of the ...
According to Harvard Health, piriformis syndrome "develops due to irritation or compression of the sciatic nerve near the piriformis muscle." The condition is more common in women. The condition ...
While sitting down with Drew Barrymore on her talk show of the same name, MacDowell, 66, revealed she suffers from piriformis syndrome, an often-painful condition where the piriformis muscle ...
The inferior gluteal nerve reliably emerged inferior to the piriformis muscle. The branching characteristics of the nerve falls into two broad categories.One category is short stalks which came under the piriformis and then gave rise to all of the terminal branches of the nerve which spanned the muscle of the gluteus maximus.
Accessory soleus muscle; Adductor hallucis muscle; ... Piriformis muscle; Plantar interossei muscles; Plantaris muscle; Popliteus muscle; Posterior compartment of leg;