Anatomy of the Face - Flipbook - Page 26
Procerus (Musculus Procerus)
ORIGIN
CLINICAL SIGNIFICANCE
NASAL BONE, (SUPERIOR PART OF) LATERAL NASAL CARTILAGE
PROCERUS IS A SMALL, TRIANGULAR MUSCLE OF THE
HEAD THAT OCCUPIES THE GLABELLA, WHICH IS THE REGION
LOCATED BETWEEN THE EYEBROWS. IT BELONGS TO THE NASAL
GROUP. WHEN CONTRACTING, THE PROCERUS MUSCLE
DEPRESSES THE MEDIAL PARTS OF THE EYEBROWS AND
WRINKLES THE SKIN BETWEEN THEM. THIS ACTION ENABLES
FROWNING, MAKING PROCERUS AN IMPORTANT CONTRIBUTOR
TO THE EXPANSIVE ARRAY OF HUMAN FACIAL EXPRESSIONS,
FOR EXAMPLE SHOWN BY AN INDIVIDUAL UPON EXPOSURE TO
STRONG AND BRIGHT LIGHT, WHILE FOCUSING OR WHEN
EXPERIENCING EMOTIONAL DISTRESS (ANGER, RAGE).
INSERTION
SKIN
OF
GLABELLA,
FIBERS
OCCIPITOFRONTALIS MUSCLE
OF
FRONTAL
BELLY
OF
BLOOD SUPPLY
ANGULAR AND LATERAL NASAL BRANCHES OF FACIAL ARTERY
INNERVATION
TEMPORAL, LOWER ZYGOMATIC OR BUCCAL BRANCHES OF
FACIAL NERVE (CN VII)
LYMPHATIC DRAINAGE
DRAINS INTO THE SUPERFICIAL AND DEEP PAROTID LYMPH NODES
THE PROCERUS MUSCLE IS OF IMPORTANCE IN COSMETIC AND
SURGICAL PROCEDURES. THE PROCERUS AND THE LARGER
GLABELLAR COMPLEX ARE A FREQUENT TARGET FOR
BOTULINUM TOXIN INJECTION TO EASE OR PREVENT SKIN
WRINKLES, AND FOR FILLERS IN ORDER TO PLUMP UP THE SKIN
AND SMOOTH OUT THE WRINKLES IN THE AREA.
ACTION
DEPRESSES MEDIAL END OF EYEBROW, WRINKLES SKIN OF GLABELLA
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