Masseteric fascia

Masseteric Fascia is a fibrous layer of connective tissue that covers the Masseter muscle. It is a part of the Superficial fascia and Deep fascia that are found throughout the human body. The Masseteric Fascia is located in the facial region, specifically in the cheek area.

Etymology

The term "Masseteric Fascia" is derived from the Greek words "másseter" meaning "chewer" and "fascia" which is Latin for "band". The name is thus indicative of its location and function, as it is associated with the Masseter muscle which is involved in the process of chewing.

Anatomy

The Masseteric Fascia is a thin, aponeurotic membrane which is well-defined and covers the superficial surface of the Masseter muscle. It is continuous with the Parotid fascia and is attached above to the lower border of the Zygomatic arch, and below it blends with the platysma and the fascia covering the sternocleidomastoid muscle.

Function

The primary function of the Masseteric Fascia is to hold the Masseter muscle in place, providing a smooth surface for the muscle to move against during the process of mastication. It also serves to protect the muscle and other underlying structures from injury.

Clinical Significance

Inflammation or injury to the Masseteric Fascia can lead to pain and difficulty in moving the jaw, a condition known as Trismus. This can be caused by various factors such as trauma, infection, or overuse of the muscle.

Related Terms

• Fascia: A band or sheet of connective tissue that covers, supports, and separates muscles and other internal organs.
• Masseter muscle: A facial muscle that plays a major role in the chewing of solid foods.
• Superficial fascia: The lowermost layer of the skin in nearly all of the regions of the body, that blends with the reticular dermis layer.
• Deep fascia: The dense fibrous connective tissue that interpenetrates and surrounds the muscles, bones, nerves, and blood vessels of the body.

Masseteric fascia Resources
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