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Buccinator
Used to suck in your cheeks
Depressor labii inferioris
Lowers lower lip
Levator labii superioris
Raises upper lip
Orbicularis oris
Closes lips (kissing muscle)
Depressor anguli oris
Depresses corner of mouth
Occipitofrontalis
Raises eyebrows, wrinkles forehead
Temporoparietalis
Tenses scalp, moves auricle of ear
Corrugator supercilii
Wrinkles brow
Orbicularis oculi
Closes eyelids; used in blinking, winking, and squinting
Zygomaticus major
Retracts and elevates corner of mouth (smiling)
Zygomaticus minor
Retracts and elevates upper lip
Mentalis
Elevates and protrudes lower lip
Procerus
Moves and wrinkles nose
Temporalis
Closes jaw
Masseter
Elevates mandible
Sternocleidomastoid
Flexes neck; rotates head
Platysma
Draws down the lower lip and angles of the mouth; tenses skin of the neck; helps depress mandible
Digastric
Elevates hyoid and depresses mandible
Mylohyoid
Elevates hyoid bone and floor of mouth
Geniohyoid
Omohyoid
Depresses hyoid
Sternohyoid
Depresses hyoid bone and larynx
Genioglossus
Depresses and protrudes tongue
Hyoglossus
Depresses and retracts tongue
Scalene (group)
Flexes/rotates neck; raises ribs
External ocular muscles (6)
Movement of eyeball
Diaphragm
Large, flat muscle at the bottom of the chest cavity that helps with breathing
External intercostals
Elevates ribs
Internal intercostals
Pectoralis major
Adducts and flexes humerus
Pectoralis minor
coracoid process of scapula
Serratus anterior
Pulls scapula anteriorly and downward
Rectus abdominis
Flexes vertebral column
External oblique
Compresses abdomen; laterally flexes and rotates vertebral column
Internal oblique
Tenses abdominal wall and compresses abdominal contents
Transverse abdominis
Compresses abdomen
Linea alba
Midline tendinous seam joining the abdominal muscles
Latissimus dorsi
Extends, adducts, and medially rotates the arm; draws the shoulder downward and backward
Trapezius
Elevates, depresses, retracts, and rotates the scapula; rotates the arm
Rhomboid major
Adducts scapula
Rhomboid minor
Adducts scapula
Erector spinae
Prime mover of back extension
Semispinalis
Transverseospinalis (multifidus)
Quadratus lumborum
Flexes the spine laterally
Ischiocavernosus
Maintains erection
Bulbospongiosus
Males: helps empty urethra
Females: constricts vagina
Deep transverse perineal
Supports pelvic organs
External anal sphincter
Internal anal sphincter
Levator ani
Hypothalamus
Lying below the thalamus; it directs eating, drinking, body temperature; helps govern the endocrine system via the pituitary gland; and is linked to emotion and reward
Thymus
Pancreas
Thyroid
Suprarenal (adrenal) gland
Pituitary gland
Ovary
Testies
Thyroid and parathyroid