The muscles Flashcards
Muscle of mastication which helps to close the mandible.
chewing muscle
Temporalis
Muscle of mastication which closes the mandible.
chewing muscle
Masseter
Principle muscle of the cheek which compresses the cheeks and forms the lateral wall of the mouth.
chewing muscle
Buccinator
Draws the scalp posteriorly and inferiorly and raises the eyebrows.
eyebrow muscle
Occipitofrontalis (epicranius)
Closes eyelids and compresses lacrimal sacs.
eyebrow muscle
Orbicularis oculi
A pyramid shaped muscle of facial expression which draws the eyebrows inferiorly and medially (draws brows together).
eyebrow muscle
Corrugator
Muscle that draws the skin of the forehead inferiorly (draws brows together).
eyebrow muscle
Procerus
Muscle that raises upper eyelid.
eyebrow muscle
Levator palpebrae superioris
Elevates and extends upper lip.
smiling muscles, false
Levator labii superioris
Elevates the angle of the mouth.
smiling muscle, false
Levator anguli oris
Narrow superficial band of muscle that pulls the angle of the mouth laterally.
smiling muscle, false
Risorius
Draws superior lip posteriorly and superiorly.
smiling muscle, real
Zygomaticus major
Draws upper lip anteriorly and superiorly.
smiling muscle, real
Zygomaticus minor
Closes and puckers lips.
mouth muscle
Orbicularis oris
Large muscle from the cheekbone and lower rim of the eye socket which raises the upper lid.
mouth muscle
Quadratus labii superioris
Elevates the upper lip and dilates the nostril opening.
mouth muscle
Levatator labii superior alaque nasi
Depresses the angle of the mouth,
mouth muscle
Depressor anguli oris
Draws lower lip inferiorly and slightly lateral.
mouth muscle
Depressor labii inferioris
Elevates and protrudes the inferior lip and wrinkles the skin over the chin,
mouth muscle
Mentalis
thin layer of muscle covering the anterior aspect of the neck.
neck muscle
Platysma
Muscle attached to the mastoid process of the temporal bone and separate heads to the sternum and clavicle.
-Turns and nods the head.
neck muscle
Sternocleidomastoid
Muscle attached to the hyoid bone and the scapula functioning in depressing the hyoid bone, swallowing, and breathing.
neck muscle
Omohyoid
Double bellied muscle which draws the hyoid bone superiorly.
neck muscle
Digastricus
Triangular muscle that moves the head and shoulders.
back muscle
Trapezius
Flat, posterior muscle that extends and adducts the shoulder.
back muscle
Latissimus dorsi
Adducts the humerus and assists latissimus dorsi in adducting the shoulders.
back muscle
Tres major
Superficial muscle that fans out across chest.
-Adducts arm
-Rotates arms medially
chest muscle
Pectoralis major