RA 1 Exam 2 Flashcards
The face has how many bones?
14
Muscle that raises the eyebrows.
Occipitofrontalis (epicranius).
Muscle the allows us to chew.
Temporalis
Muscle that closes the mandible. Aids in chewing.
Masseter
Musle that closes the eyelid and compresses the lacrimal sac.
Orbicularis oculi.
Muscle that draws the eyebrows inferiorly…frowning.
Corrugator
Muscle that raises the upper eyelid.
Levator palpebrae superioris
Muscle that draws the skin of the forehead inferiorly; wrinkles the forehead.
Procerus
Muscle that closes the lips. Puckering muscle.
Orbicularis oris
Muscle that raises the upper lip and dilates the nostrils (common elevator)
Levator labii superioris alaeque nasi.
Muscle that elevates and extends the upper lip.
Levator labii superioris.
Muscle that draws the lip superiorly and laterally.
Zygomaticus minor.
Muscle that makes us smile or laugh.
Zygomaticus major (laughing muscle).
Muscle used in blowing a trumpet.
Buccinator
Muscle that draws the corners of the mouth posteriorly.
Risorius
Muscle that depresses the angle of the mouth
Depressor anguli oris.
Muscle that depresses the lower lip inferiorly and slightly laterally.
Depressor labii inferioris (Quadratus).
Muscle that elevates and protrudes the lower lip. Also wrinkles skin over the chin.
Mentalis.
Muscle that wrinkles the skin of the neck and chest. “Pouting” muscle.
Platysma
Muscle that rotates and depresses the head.
Sternocleidomastoid
Muscle that draws the hyoid bone superiorly.
Digastricus
Wrinkles, depressions and projections are known as what?
Facial markings.
Six things that are responsible for facial markings…
Heredity, age, environment, muscle striation and action, position of the body and condition of the body.
Crevice in the skin bordered by adjacent elevations.
Furrow/Sulcus/Wrinkle.
An elongated depression on a relatively level plane or surface.
Groove
An elongated prominence adjoining a surface.
Fold
The fleshy termination of the nasal septum at the base of the nose located between the nostrils. The most inferior part of the nose.
Columna nasi
the horseshoe-shaped bone forming the inferior jaw.
Mandible
Small oval depression on the zygomatic process of the temporal bone into which the condyle of the mandible articulates. anterior to external auditory meatus Forms TMJ.
Mandibular fossa
jaw protrusion of the inferior jaw.
Mandibular prognathism
The furrow beneath the jawline, which rises vertically on the cheek; an acquired facial feature.
Mandibular sulcus
muscle of mastication which close the mandible.
Masseter
the rounded projection on the inferior portion of the temporal bones just posterior to the lobe of the ear.
Mastoid process
a triangular projection on the inferior portion of the anterior mandible.
Mental eminence
the muscle which elevates and protrudes the lower lip, wrinkles the skin over the chin.
Mentalis
directly inferior to the glabella and form a dome over the superior portion of the nasal cavity.
Nasal bones
the orifice in the bony face bounded by the margins of the nasal bones and the maxilla.
Nasal cavity
the sharp, bony projection located medially at the inferior margin of the nasal cavity.
Nasal spine of the maxilla