Definition

Noun: A facial muscle is any one of the skeletal muscles that are attached to the bones of the skull or face and are responsible for producing movements and expressions of the face.

Usage

The term facial muscle is used to refer specifically to the muscles that control facial expressions, such as smiling, frowning, or raising an eyebrow. It is a technical term common in anatomy, biology, and medicine.

Examples

• The facial muscle responsible for smiling is called the zygomaticus major.
• Botox injections are often used to temporarily paralyze a facial muscle to reduce wrinkles.
• The actor has excellent control over every facial muscle, allowing for very subtle expressions.

Advanced Usage

• "Innervation of the facial muscles": This phrase refers to the nerves that supply and control the facial muscles, primarily the facial nerve (cranial nerve VII).
• "Facial muscle tone": This describes the slight, constant tension in facial muscles that helps maintain the face's shape and posture.

Variants and Related Words

• Muscle of facial expression: A more descriptive, synonymous term used in formal anatomy.
• Mimetic muscle: Another technical synonym for a facial muscle.
• Facial nerve: The nerve that controls most facial muscles.

Synonyms

• Muscle of facial expression
• Mimetic muscle

Related Phrases

• Facial muscle group: Refers to the collective set of all facial muscles.
• Facial muscle spasm: An involuntary, sudden contraction of a facial muscle.

Noun

1. any of the skeletal muscles of the face