Muscles of the Face, Head and Neck.  Muscles of the face originate on the surface of the skull and insert into the dermis of the skin…when the muscles.

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Presentation transcript:

Muscles of the Face, Head and Neck

 Muscles of the face originate on the surface of the skull and insert into the dermis of the skin…when the muscles contract, the skin moves  Largest group of facial muscles are associated with the mouth

 Region: cephalic/mouth  Action: compresses cheeks towards teeth  Ex: playing a trumpet

 Region: cephalic/mouth  Action: compresses, purses lips  Ex: kissing

 Region: cephalic/mouth  Action: depresses corner of mouth  Ex: frowning

 Region: cephalic/mouth  Action: draws corner of mouth upward  Ex: smiling

 Region: cephalic/eye  Action: closes eye  Ex: blinking, squinting

 Region: cephalic/scalp  Action: raises eyebrow, wrinkles forehead

 Region: cephalic/scalp  Action: tenses and retracts the scalp

 Region: mandible  Action: closes mandible  Ex: closes mouth during chewing

 Region: mandible  Action: elevates, protracts and/or moves mandible side to side

 Region: cephalic/mandible  Action: elevates mandible  Ex: clenching your jaw, crushing food

 Region: cervical  Action: tenses skin of neck, depresses mandible

 Region: cervical  Action: depresses mandible and elevates larynx  Ex: opening mouth

 Region: cervical  Action: elevates floor of mouth and hyoid and/or depresses mandible  Actually forms the floor of the oral cavity

 Region: cervical  Action: depresses hyoid bone and larynx

 Region: cervical  Action: depresses hyoid and larynx

 Region: cervical  Action: elevates larynx

 Region: cervical  Action: both sides together flex the neck; one side alone bends head toward shoulder and turns face to opposite side

frontalis temporalis Orbicularis oculi masseter buccinator Depressor anguli sternocleidomastoid zygomaticus Orbicularis oris platysma

Frontalis

Buccinator and orbicularis oris

Orbicularis oculi

Platysma

Orbicularis oris

Depressor Anguli Oris

Pectoralis major Pectoantebrachialis Clavobrachialis Clavotrapezius Cleidomastoid Sternomastoid Sternohyoid Mylohyoid Digastric Masseter