Occipitofrontalis muscle

Occipitofrontalis Muscle Anatomy

It is a muscle that covers parts of the skull. It consists of two parts or bellies: The occipital belly, near the occipital bone, and the frontal belly, near the frontal bone. In humans, the occipitofrontalis only serves for facial expressions.

Origin:

Two occipital bellies and two frontal bellies.

Insertion:

Galea aponeurotic.

Nerve supply :

Facial nerve.

Actions:

Raises eyebrows, wrinkled forehead.

Clinical importance:

In bell’s palsy-related occipitofrontalis muscle paralysis.