frontalis muscle

(redirected from Frontal belly)

fron·tal bel·ly of occipitofrontalis muscle

the anterior belly of the occipitofrontalis muscle. See: occipitofrontalis (muscle).

frontalis muscle

Front half of occipitofrontalis muscle – a facial muscle. Origin: epicranial (scalp) aponeurosis. Insertion: skin of eyebrows, root of nose. Nerve: facial (CN VII). Action: elevates eyebrows, wrinkles forehead.
See: face and head for illus.
See also: muscle


[L.] frontal.

frontalis muscle
cutaneous muscle stretching over the forehead into the upper eyelid.