The word "frontalis" is spelled with the IPA phonetic transcription /frʌnˈteɪlɪs/. The first syllable is pronounced with the short "u" sound, while the second syllable starts with the "t" sound, followed by the long "a" sound, and ending with the "l" sound. The final syllable is pronounced with the "is" sound. "Frontalis" is a term used in anatomy to describe the muscle that covers the forehead and raises the eyebrows. Accurate spelling of this word is important for medical professionals and students.
Frontalis is a medical term that refers to a muscle located in the forehead region of the human face. It is one of the muscles responsible for facial expression and is primarily associated with the movement of the eyebrows. The frontalis muscle lies superficially, just beneath the skin on the forehead.
The frontalis muscle extends from the frontal bone of the skull to the skin of the eyebrows and forehead. It covers the forehead and forms the front part of the scalp. This muscle is responsible for several facial movements, most notably the raising and lowering of the eyebrows. When the frontalis muscle contracts, it lifts the eyebrows, creating wrinkles on the forehead and opening up the eyes. Conversely, relaxation of the frontalis muscle allows the eyebrows to descend and smoothes out wrinkles on the forehead.
The frontalis muscle is innervated by the facial nerve, specifically its temporal branches. This innervation allows for voluntary control over facial expressions, including raising the eyebrows in surprise or concentration. Additionally, the frontalis muscle aids in protecting the eyes from excessive light or foreign bodies by moving the eyebrows into a protective position.
Overall, the frontalis muscle plays a critical role in facial expression and provides both functional and aesthetic importance to the human face.
See under musculus.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
The word "frontalis" is derived from the Latin term "frons", which translates to "forehead" or "brow". The suffix "-alis" is common in Latin and signifies "pertaining to" or "relating to". Thus, "frontalis" refers to something that pertains to the forehead or brow. In anatomy, the frontalis muscle is located in the forehead and is responsible for raising the eyebrows and forming certain facial expressions.