facial muscles Flashcards
(22 cards)
What muscle would Elvis use to elevate the corner of his mouth?
Zygomaticus major + minor
What muscles look straight up? What nerve?
Superior rectus
Inferior oblique
CNIII: Occulomotor
What 4 muscles of the eye does CNIII control?
CNIII=Oculomotor Inferior Oblique Superior rectus Medial rectus Inferior rectus
What muscles convey surprise?
occipitofrontalis
What muscles show that someone stinks?
Procerus
Trasnverse part of nasalis
Which muscle is used to elevate eyebrows and wrinkle forehead?
Occipitofrontalis
What are the 4 major muscles of mastication? What nerve are they innervated by?
Masseter lateral pterygoid medial pterygoid temporalis CNV3 Trigeminal Mandibular
Which muscle elevates upper lip?
levator labii superioris
Which muscle flares the nostrils?
nasalis
Which muscle closes and purses lips?
orbicularis oris
Which muscle causes compression of cheeks?
buccinator
Which muscle retracts angle of mouth to produce a smile?
risorius
Which muscle depresses lower lip?
depressor labii inferioris
What muscles retract and depress upper and lower lips, as if in a snarl?
levator labii superioris and depressor labii
Which muscles create a frown?
depressor anguli oris
Which muscle creates a pout?
mentalis
Which muscle draws mouth downward while tensing skin overlying the neck?
platysma
What muscles cause the mouth to close?
Temporalis
masseter
medial pterygoid
What muscles open the mouth?
lateral pterygoid
suprahyoid
infrahyoid
What muscles protrude chin?
lateral pterygoid
masseter
medial pterygoid
What muscles cause retrusion of the chin?
temporalis (posterior oblique and near hoirzontal fibers)
masseter
What muscles cause lateral movements such as grinding and chewing?
temporalis of same side
pterygoids of opposite side
masseter
