Depressor supercilii muscle is a small muscle located in the forehead region of the face. It is responsible for lowering the eyebrows and contributing to facial expressions such as sadness or surprise.
Location
The depressor supercilii muscle is located in the forehead region, just above the eyes. It is part of the facial musculature, which is responsible for movements of the face and facial expressions.
Structure
The depressor supercilii muscle is a small, triangular muscle that originates from the medial portion of the brow bone, also known as the orbital rim. It then inserts onto the skin of the forehead, just above the eyebrows.
The muscle is innervated by the facial nerve (CN VII), which controls the movement of the facial muscles.
Function
The primary function of the depressor supercilii muscle is to lower the eyebrows. This movement is used in facial expressions such as sadness or surprise.
In addition, the depressor supercilii muscle also helps to wrinkle the forehead and can contribute to other facial expressions such as anger or disgust.
Clinical significance
Problems with the depressor supercilii muscle can lead to issues with facial expressions and communication. For example, paralysis of the muscle can result in an inability to lower the eyebrows, which can affect the ability to convey emotions through facial expressions.
Additionally, overactivity of the depressor supercilii muscle can lead to chronic frowning and the development of wrinkles on the forehead, which can be a cosmetic concern for some individuals.
Treatment options for problems with the depressor supercilii muscle may include facial nerve reanimation surgery or Botox injections to weaken the muscle.
