MEDICINE IS FUN.
THE PLATYSMA MUSCLE  When your collar is too tight it is the constriction of the platysma muscle that helps loosen it. Otherwise this muscle doesn’t have much function. Laxness of this muscle is often a major factor in causing the sag under the chin in older people (this is not just aging skin, or from accumulating fat). This muscle forms the outermost layer of the neck muscles.  It is a broad, thin muscle.

THE PLATYSMA MUSCLE 

When your collar is too tight it is the constriction of the platysma muscle that helps loosen it. Otherwise this muscle doesn’t have much function. Laxness of this muscle is often a major factor in causing the sag under the chin in older people (this is not just aging skin, or from accumulating fat). This muscle forms the outermost layer of the neck muscles.  It is a broad, thin muscle.

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