frontalis muscle

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fron·tal bel·ly of occipitofrontalis muscle

[TA]
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

frontalis

[L.] frontal.

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