Muscles that MOVE the face Flashcards
Orbicularis Oculi
ORIGIN
Medial margin of orbit (eye socket).
INSERTION
Skin around eyelids.
ACTION
Closes eyelids.
INNERVATION
Facial nerve (CN VII).
Orbicularis Oris
ORIGIN
Muscles surrounding the mouth, mandible, and maxilla.
INSERTION
Encircles the lips.
ACTION
Purses and compresses lips.
INNERVATION
Facial nerve (CN VII).
Epicranius (Frontal Belly)
ORIGIN
Highest nuchal line of the occipital bone.
INSERTION
Epicranial aponeurosis or galea aponeurotica.
ACTION Pulls scalp posteriorly.
INNERVATION
Facial nerve (CN VII).
Epicranius (Occipital Belly)
ORIGIN
Highest nuchal line of the occipital bone.
INSERTION
Epicranial aponeurosis or galea aponeurotica.
ACTION
Pulls scalp posteriorly.
INNERVATION
Facial nerve (CN VII).
Corrugator Supercilii
ORIGIN
Superciliary arch or arch of frontal bone (above nasal bone).
INSERTION
Skin of eyebrow.
ACTION
Draws eyebrows medially and inferiorly. INNERVATION
Facial nerve (CN VII.)
Zygomaticus Major and Minor
ORIGIN
Zygomatic bone.
INSERTION
Skin at corner of mouth (orbicularis oris) or Modiolus of mouth.
ACTION
Raises lateral corners of mouth upward and laterally (smile).
INNERVATION
Facial nerve (CN VII).
Risorius
ORIGIN
Parotid fascia.
INSERTION
Skin at corner of mouth (orbicularis oris) or Modiolus of mouth.
ACTION
Draws corner of lip laterally.
INNERVATION
Facial nerve (CN VII).
Depressor Labii Inferioris
ORIGIN
Body of mandible lateral to midline or Oblique line of mandible.
INSERTION
Integument of the lower lip.
ACTION
Depresses or draws lower lip inferiorly.
INNERVATION
Facial nerve (CN VII).
Depressor Anguli Oris
ORIGIN
Tubercle of mandible.
INSERTION
Skin at corner of mouth (orbicularis oris) or Modiolus of mouth.
ACTION
Depresses the angle of mouth.
INNERVATION
Facial nerve (CN VII).
