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Depressor supercilii muscle

from Latin: deprimere - depress, press down; cilium - eyelash, eyelid
German: Musculus depressor supercilii

1 Definition

The depressor supercilii muscle is a small, two-headed muscle in the region of the palpebral fissure. It counts among the mimic muscles.

Note: Some authors consider the depressor supercilii musce not an independent muscle, but they attribute it to the orbicularis oculi muscle, or to the corrugator supercilii muscle.

2 Devolution

The depressor supercilii muscle has its origin at the frontal process of the maxilla and at the superciliary arch of the frontal bone. Based on recent findings, the muscle has two heads, and the artery and angular vein pass between them. Its fibers go straight into cranial direction. There, they insert into the skin of the medial eyebrow.

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3 Innervation

The depressor supercilii muscle is innervated by the temporal branches of the VIIth cranial nerve (facial nerve).

4 Function

The depressor supercilii muscle draws the eyebrow downwards. The muscle has grown together with the corium, which causes the skin to follow the muscle movements. Thereby, together with the procerus musle, it creates a horizontal wrinkle in the glabellar region, the so-called glabellar frown line.

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