Galea aponeurotica
Galea aponeurotica
Galea aponeurotica (pronunciation: /ɡəˈliːə ˌæpənʊˈrɒtɪkə/) is a tough layer of dense fibrous tissue which covers the upper part of the cranium in humans and various other animals. It is also known as the epicranial aponeurosis.
Etymology
The term "Galea aponeurotica" originates from the Latin word "galea", meaning helmet, and the Greek word "aponeurosis", which refers to a type of connective tissue. This name is fitting as the Galea aponeurotica acts like a helmet, providing a protective layer for the top of the skull.
Function
The Galea aponeurotica connects the anterior and posterior bellies of the occipitofrontalis muscle, allowing them to move the scalp back and forth. It also serves as an attachment point for several other muscles, including the temporalis muscle and superior auricular muscle.
Related Terms
- Aponeurosis: A sheet of pearly-white fibrous tissue that takes the place of a tendon in flat muscles having a wide area of attachment.
- Occipitofrontalis muscle: A muscle which covers parts of the skull.
- Temporalis muscle: A broad, fan-shaped muscle on each side of the head that covers much of the temporal bone.
- Superior auricular muscle: A muscle that arises from the galea aponeurotica and controls the movement of the ear.
External links
- Medical encyclopedia article on Galea aponeurotica
- Wikipedia's article - Galea aponeurotica
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