Temporoparietalis muscle

Temporoparietalis muscle is a thin, fan-shaped muscle located in the head, specifically in the temporal and parietal regions. It is also known as the epicranial muscle or the temporoparietal fascia.

Etymology

The term "temporoparietalis" is derived from the Latin words "tempora" meaning "time" and "parietalis" meaning "wall". This is in reference to the muscle's location in the temporal and parietal regions of the skull.

Anatomy

The temporoparietalis muscle is part of the epicranius muscle, which also includes the occipitalis muscle and the frontalis muscle. It is located on the side of the head, stretching from the temporal bone to the parietal bone. The muscle is thin and quadrilateral in shape, and it is covered by the temporal fascia.

Function

The primary function of the temporoparietalis muscle is to move the scalp. It works in conjunction with the other muscles of the epicranius to raise the eyebrows and wrinkle the forehead. This muscle also plays a role in facial expressions.

Clinical significance

Damage to the temporoparietalis muscle can result in a condition known as Bell's palsy, which is characterized by facial paralysis. Treatment typically involves physical therapy to strengthen the muscle and improve facial movements.

Related terms

• Epicranius muscle
• Occipitalis muscle
• Frontalis muscle
• Temporal bone
• Parietal bone
• Temporal fascia
• Bell's palsy

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