Muscle Names Flashcards
Frontalis
Raises eyebrows, wrinkles forehead
Occipitalis
Facial expressions
Orbicularis oculi
Closes eyelids
Orbicularis oris
Kissing, whistling
Zygomaticus major and minor
Laughing, smiling
Platysma
Lower jaw, frown
Masseter
Elevates mandible, closes the jaw
Temporalis
Biting, chewing food
Sternocleidomastoid
Moves head side to side, extends head
Quadratus lumborum
Lateral flexion of trunk. Lateral stability to vertebral column. Stabilizes 12th rib during inspiration
Erector spinea
Consists of the iliocostalis, longissimus, spinalis muscles
Rectus abdominis
Flexes trunk, depresses ribs, and upwardly rotates pelvis
External oblique
rotation of trunk to opposite side and lateral flexion of trunk to same side. flexion of the trunk
Internal oblique
rotation of trunk to same side and lateral flexion of trunk to same side. flexion is of the trunk
Transverse abdominis
Compresses abdominal contents
External intercostals
Elevates rib cage, aids inspiration
Internal intercostals
Depresses rib cage, aids in expiration
Diaphragm
Breathing in and out
Trapezius
Elevates and depresses shoulders, bending and turning the head, internally rotate arm
Rhomboid major
Adducts, stabilizes, and downwardly rotates the scapula
Rhomboid minor
Adducts, stabilizes, and downwardly rotates the scapula