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The Muscular System Muscles of the Face, Head and Neck

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Page 1: 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

The Muscular SystemMuscles of the Face, Head and Neck

Page 2: 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

General Info:

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

Page 3: 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

Buccinator (“trumpet player”)

Region: cephalic/mouthAction: compresses cheeks towards

teeth Ex: playing a trumpet

Page 4: 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

Orbicularis oris

Region: cephalic/mouthAction: compresses, purses lips

Ex: kissing

Page 5: 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

Depressor anguli oris

Region: cephalic/mouthAction: depresses corner of mouth

Ex: frowning

Page 6: 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

Zygomaticus

Region: cephalic/mouthAction: draws corner of mouth

upward Ex: smiling

Page 7: 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

Orbicularis oculi

Region: cephalic/eyeAction: closes eye

Ex: blinking, squinting

Page 8: 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

Frontalis

Region: cephalic/scalpAction: raises eyebrow, wrinkles

forehead

Page 9: 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

Occipitalis

Region: cephalic/scalpAction: tenses and retracts the

scalp

Page 10: 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

Masseter

Region: mandibleAction: closes mandible

Ex: closes mouth during chewing

Page 11: 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

Pterygoids

Region: mandibleAction: elevates , protracts and/or

moves mandible side to side

Page 12: 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

Temporalis

Region: cephalic/mandibleAction: elevates mandible

Ex: clenching your jaw, crushing food

Page 13: 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

Platysma

Region: cervicalAction: tenses skin of neck,

depresses mandible

Page 14: 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

Digastric (“two bellies”)

Region: cervicalAction: depresses mandible and

elevates larynx Ex: opening mouth

Page 15: 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

Mylohyoid

Region: cervicalAction: elevates floor of mouth and

hyoid and/or depresses mandible Actually forms the floor of the oral cavity

Page 16: 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

Sternohyoid

Region: cervicalAction: depresses hyoid bone and

larynx

Page 17: 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

Sternothyroid

Region: cervicalAction: depresses hyoid and larynx

Page 18: 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

Stylohyoid

Region: cervicalAction: elevates larynx

Page 19: 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

Sternoclediomastoid

Region: cervicalAction: both sides together flex the

neck; one side alone bends head toward shoulder and turns face to opposite side

Page 20: 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

Anatomy - Human

frontalis

temporalis

Orbicularis oculi

masseter

buccinator

Depressor angulisternocleidomastoid

zygomaticus

Orbicularis oris

platysma

Page 21: 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

Name the muscle…

Frontalis

Page 22: 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

Name the muscle…

Buccinator and orbicularis oris

Page 23: 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

Name the muscle…

Orbicularis oculi

Page 24: 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

Name the muscle…

Platysma

Page 25: 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

Name the muscle…

Orbicularis oris

Page 26: 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

Name the muscle…

Depressor Anguli Oris

Page 27: 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

Anatomy - catPectoralis major

Pectoantebrachialis

Clavobrachialis

Clavotrapezius

Cleidomastoid

Sternomastoid

Sternohyoid

Mylohyoid

Digastric

Masseter


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