Craniofacial Muscles Flashcards
Buccinator (attachments)
alveolar processes of maxilla & mandible, pterygoid hamulus & pterygomandibular raphe to buccal angle
Buccinator (action)
compresses cheek
Buccinator (innervation)
buccal branch of facial n.
Depressor Anguli Oris (attachments)
mandible to buccal angle
Depressor Anguli Oris (action)
depresses buccal angle laterally
Depressor Anguli Oris (innervation)
buccal & mandibular branch of facial n.
Frontalis (attachments)
superficial fascia of eyebrows to epicranial aponeurosis
Frontalis (action)
protracts scalp or elevates eyebrows & nose
Frontalis (innervation)
temporal branch of facial n.
Levator Labii Superioris (attachments)
inferior orbital margin to lateral aspect of upper lip
Levator Labii Superioris (action)
raises & everts upper lip
Levator Labii Superioris (innervation)
buccal & zygomatic branches of facial n.
Nasalis (attachments)
maxilla lateral & inferior to nasal notch to bridge & ala of nose
Nasalis (action)
transverse fibers compress & alar fibers widen nasal aperture
Nasalis (innervation)
buccal branch of facial n.
Orbicularis Oculi (attachments)
orbital margin & medial palpebral lig. to superficial fascia of eyelid
Orbicularis Oculi (action)
palpebral sphincter (closes eyes)
Orbicularis Oculi (innervation)
temporal & zygomatic branches of facial n.
Orbicularis Oris (attachments)
angle of mouth to superficial fascia of upper lip
Orbcularis Oris (action)
oral sphincter (closes mouth)
Orbicularis Oris (innervation)
buccal & mandibular branches of facial n.
Platysma (attachments)
lower border of mandible to superficial fascia of skin of neck overlying clavicle
Platysma (action)
wrinkles anterior nuchal skin
Platysma (innervation)
cervical branch of facial n.
Zygomaticus Major (attachments)
zygomatic bone to angle of mouth
Zygomaticus Major (action)
raises buccal angle
Zygomaticus Major (innervation)
buccal & zygomatic branches of facial n.
