Serratus
Serratus
Serratus (pronunciation: /sɛˈreɪtəs/) is a term used in anatomy to describe a muscle that has a serrated or saw-like appearance. The term is derived from the Latin word "serra," which means "saw."
Etymology
The term "serratus" comes from the Latin word "serra," which means "saw." This is due to the muscle's appearance, which resembles the teeth of a saw.
Anatomy
There are three muscles in the human body that are referred to as serratus muscles. These include:
- Serratus Anterior: This muscle is located on the side of the chest and is responsible for the protraction and upward rotation of the scapula.
- Serratus Posterior Superior: This muscle is located in the upper back and aids in the elevation of the ribs.
- Serratus Posterior Inferior: This muscle is also located in the back and aids in the depression of the ribs.
Related Terms
- Scapula: The bone to which the serratus muscles attach.
- Protraction: The action of moving a body part forward, as performed by the serratus anterior.
- Rotation: The action of rotating around an axis or center, as performed by the serratus anterior.
- Elevation: The action of raising a body part, as performed by the serratus posterior superior.
- Depression: The action of lowering a body part, as performed by the serratus posterior inferior.
External links
- Medical encyclopedia article on Serratus
- Wikipedia's article - Serratus
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