32 terms

Muscles of the Head and Neck( with models pictures

STUDY
PLAY
Frontalis
Draws back scalp, wrinkles forehead, raises eyebrows
Mentalis
Elevates and protrudes lower lip; used in pouting
Orbicularis oculi
Closes eyelids; used in blinking, winking, and squinting
Orbicularis oris
Closes and protrudes lips; used in whistling and forming many letters during speech; the "kissing muscle"
Risorius
Draws angles of the mouth laterally; draws lips into the grinning expression
Sternocleidomastoid
Contraction of one side: laterally flexes neck, rotates head to opposite side; Contraction of both sides together: flexes neck
Temporalis
Elevates and retracts mandible; assists in side to side movement of mandible
Trapezius
Elevates, depresses, retracts, and rotates the scapula; rotates the arm
Depressor anguli oris
Draws angles of mouth downward and laterally when opening mouth; used in frowning
Zygomaticus major
Draws angles of the mouth upward and outward; major muscle used in smiling and laughing
Auricularis anterior
Moves the ear
Buccinator
Draws angles of the mouth laterally; compresses cheek; used to create sucking action
Masseter
Elevates mandible when chewing and slightly protracts it
Risorius
Draws angles of the mouth laterally; draws lips into the grinning expression
Occipitalis
Draws back scalp, wrinkles forehead
Semispinalis capitis
Extends the head and rotates it to opposite side
Splenius capitis
Extends and hyperextends the head; Contraction of only one side laterally flexes and rotates the head and neck
Splenius capitis
Extends and hyperextends the head; Contraction of only one side laterally flexes and rotates the head and neck
Temporalis
Elevates and retracts mandible; assists in side to side movement of mandible
Trapezius
Elevates, depresses, retracts, and rotates the scapula; rotates the arm
Frontalis
Draws back scalp, wrinkles forehead, raises eyebrows
Masseter
Elevates mandible when chewing and slightly protracts it
Orbicularis oculi
Closes eyelids; used in blinking, winking, and squinting
Orbicularis oris
Closes and protrudes lips; used in whistling and forming many letters during speech; the "kissing muscle"
Depressor anguli oris
Draws angles of mouth downward and laterally when opening mouth; used in frowning
Zygomaticus major
Draws angles of the mouth upward and outward; major muscle used in smiling and laughing
Platysma
Draws down the lower lip and angles of the mouth; tenses skin of the neck; helps depress mandible
Genioglossus
Protracts and depresses tongue
Styloglossus
Retracts and elevates tongue
Stylohyoid
Retracts and elevates the hyoid
Sternocleidomastoid
Contraction of one side: laterally flexes neck, rotates head to opposite side; Contraction of both sides together: flexes neck
Zygomaticus major
Draws angles of the mouth upward and outward; major muscle used in smiling and laughing