Written by the Fiveable Content Team • Last updated August 2025
Written by the Fiveable Content Team • Last updated August 2025
Definition
The mental protuberance is the forward-pointing projection at the lower part of the symphysis of the mandible, commonly known as the chin. It provides attachment for several facial muscles and contributes to facial aesthetics and function.
The largest and strongest bone of the face that holds the lower teeth in place and provides structure for the lower jaw.
Symphysis: A type of cartilaginous joint where bones are joined by fibrocartilage, exemplified by where the two halves of the mandible meet at the chin.
Facial Muscles: Groups of striated skeletal muscles innervated by cranial nerves, which control and move expressions in the face