Depressor supercilii muscle

Last revised by Andrea Molinari on 18 Jan 2023

The depressor supercilii is a facial muscle found medial to the orbits and acts as a depressor of the eyebrow.

Ongoing debate exists regarding the exact designation of this muscle. Some anatomy sources view it as part of the orbicularis oculi muscle while others (Cook et. al) suggest the depressor supercilii is a distinct muscle with its own origin and insertion 1,2.

The depressor supercilii muscle arises from the medial orbital rim formed by the frontal process of the maxillary bone. The muscle originates from two heads in most specimens and one head in a few others 2.

The depressor supercilii inserts in the dermis on the medial aspect of the bony orbit, inferior to the corrugator supercilii muscle.

Blood supply to the depressor supercilii is provided by branches of the facial artery (a branch of the external carotid artery).

Like the corrugator supercilii, the depressor supercilii muscle is innervated by temporal branches of the facial nerve (CN VII).

The depressor supercilii, as the name hints, is part of the eyebrow depressor muscles that functions to draw the eyebrow inferiorly upon contraction.

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