Muscles of the head, face, and neck. Risorius shown in red. This is the most standard version of the direction and origin of the muscle. The risorius muscle is a highly variable muscle of facial …

Oct 30, 2023 · As the risorius contracts in an outward and upward motion, the muscle pulls the angle of the mouth laterally. Thereby, it aids in producing facial expressions, either solely or in …

Jun 5, 2023 · There is a risorius muscle located on either side of the lips in most individuals. Like other facial muscles, the risorius has a greater percentage of slow muscle fibers and contains …

Learn about the risorius muscle, its origin, insertion, action, innervation, and arterial supply. Understand its role in facial expressions.

Dec 18, 2022 · The risorius is a small, thin muscle located in the face. It is one of the muscles of facial expression, which are responsible for controlling the movement and expression of the …

The risorius is a thin, highly variable muscle of facial expression located in the superficial layer of the cheek. it contributes to smiling by retracting the angle of the mouth laterally — producing a …

The risorius is a small muscle located in the cheek that is responsible for pulling the corners of the mouth laterally, creating a grinning or laughing expression.