The occipitofrontalis muscle (epicranius muscle) is a muscle which 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. It is supplied by the supraorbital artery, the supratrochlear artery, and the occipital artery.

What is the epicranius muscle made up of?

The Epicranius (Occipitofrontalis) is a broad, musculofibrous layer, which covers the whole of one side of the vertex of the skull, from the occipital bone to the eyebrow. It consists of two parts, the Occipitalis and the Frontalis, connected by an intervening tendinous aponeurosis, the galea aponeurotica.

Which structure forms the posterior portion of the occipitofrontalis?

Also known as the occipitofrontalis. Is the broad muscle that covers the top of the skull and consist of the occipitalis and frontalis. Back (posterior) portion of the epicranius; the muscle that draws the scalp backward.