Piriformis Muscle Anatomy

In this article we will discuss the anatomy of piriformis as well as its neurovascular supply and function. The muscle attaches onto the anterior sacrum that is on the inside of the pelvic bowl.

Muscle Motion Piriformis Stretch

The piriformis is a flat pyramid shaped muscle that lies parallel to in line with the gluteus medius muscles back margin and underneath the gluteus maximus muscle in the hip area.

Piriformis muscle anatomy. The common symptoms are buttock and leg pain. The piriformis from latin piriformis meaning pear shaped is a muscle in the gluteal region of the lower limb. Gemellus superior obturator internus gemellus inferior quadratus femoris obturator externus.

When working with any injury it is important to note. Piriformis is translated as pear shaped muscle. It was first named by adriaan van den spiegel a professor from the university of padua in the 16th century.

In addition we discuss the clinical relevance of the muscle. The piriformis gets its name from the latin word for pear shape although most doctors tend to describe it as triangular. The latin name for the piriformis muscle is musculus piriformis.

It is one of the six muscles in the lateral rotator group. Piriformis syndrome is a reported cause of lower back pain and sciatica secondary to sciatic nerve entrapment in piriformis muscle at the greater sciatic notch 12. Piriformis belongs to a group of six short external rotators of the hip ie.

As shown in the figures from the fami ipad app series. The word piriformis comes from the latin words pirum meaning pear and forma meaning form or shape. The anatomy of the piriformis muscle.

The muscle passes through the greater sciatic foramen a space in the pelvic bones on each side of the center and to the upper part. The piriformis muscle is a small but powerful soft tissue in the deep buttocks anatomy which is responsible for specific hip and leg movements. Anatomy of an injury.

It is usually due to an abnormal condition of the piriformis muscle such as hypertrophy inflammation or anatomic variations caused by various conditions 3 7.

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