Piriform Anatomy

In this article we will discuss the anatomy of piriformis as well as its neurovascular supply and function. The piriform sinus is a subsite of the hypopharynx.

Piriformis Muscle An Overview Sciencedirect Topics

In addition we discuss the clinical relevance of the muscle.

Piriform anatomy. Piriform aperture more commonly known as anterior nasal aperture. Gross anatomy the piriformis is a flat muscle pyramidal in shape lying almost parallel with the posterior margin of the gluteus medius and deep to gluteus maximus. The pyriform sinus also spelled piriform sinus and also known as the pyriform recess pyriform fossa and smugglers fossa is the pear shaped subsite of the hypopharynx located posterolaterally to either side of the laryngeal opening.

Gemellus superior obturator internus gemellus inferior quadratus femoris obturator externus. Piriform cortex a region in the brain. Piriformis belongs to a group of six short external rotators of the hip ie.

Piriformis muscle a gluteal muscle piriformis syndrome a neuromuscular disorder in which piriformis muscle compresses the sciatic nerve. The entity is controversial as are the putative causes. Clinical presentation sciatic pain reproduced on.

It is situated partly within the pelvis against its posterior wall and partly at the back of the hip joint. The piriformis syndrome ps refers to a rare entrapment neuropathy resulting in radicular pain radiating into the buttock and hamstrings. In human anatomy the piriform cortex has been described as consisting of the cortical amygdala uncus and anterior parahippocampal gyrus.

More specifically the human piriform cortex is located between the insula and the temporal lobe. 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. This distinction is important for head and neck cancer staging and treatment.

The piriform cortex is part of the rhinencephalon situated in the cerebrum. The internal laryngeal nerve supplies sensation to the area and it may become damaged if the mucous membrane is inadvertently punctured.

Anatomy Of An Injury Piriformis Syndrome Article Ptonthenet