NCIt definition : A pyramid-shaped muscle in the face that allows movement of the skin between the eyebrows.
It originates on the lower part of the nasal bone and inserts into the frontalis muscle
in the forehead. It is innervated by branches of the facial nerve and supplied by
the facial artery.;
Alternative definition : CDISC: A muscle in the face, in general extending from the lower part of the nasal
bone to the frontalis muscle in the forehead; primary function is to move the skin
between the eyebrows.;