The occipitofrontalis is a long, wide muscle that stretches across the scalp, extending from the superior nuchal line of the occipital bone to the eyebrows. It consists of two muscular bellies - the occipital belly (occipitalis muscle) and the frontal belly (frontalis muscle). Both bellies are connected by a thick fibrous tissue sheath called the epicranial aponeurosis (galea aponeurotica).💡 Learn human anatomy fast at Anatomy.app!🧠 https://anatomy.app #anatomy #medschool #medstudent | Anatomy

The occipitofrontalis is a thin, flat muscle of the scalp that plays a key role in facial expressions. It is part of the epicranial group and consists of two muscle bellies—frontal and occipital—connected by the epicranial aponeurosis (galea aponeurotica). Origin and Insertion: • Frontal belly: • Origin: Skin and subcutaneous tissue of the eyebrows. • Insertion: Epicranial aponeurosis near the coronal suture. • Occipital belly: • Origin: Superior nuchal lines of the occipital bone. • Insertion: