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Orbicularis oculi
closes the eye
Temporalis
closes the jaw
Masseter
elevates mandible
Sternocleidomastoid
flexes the head
Buccinator
keeps food between grinding teeth
Orbicularis oris
purses lips
Zygomaticus
Smiling
Deltoid
abducts arm
Internal intercostals
depresses rib cage
Pectoralis minor
draws scapula forward and downward; moves rib cage up
External intercostals
elevates rib cage
Latissimus dorsi
extends arm
Pectoralis major
flexes arm; rotates arm medially
Trapezius
rotates scapula
Supraspinatus
stabilizes shoulder
Teres major
stabilizes shoulder joint; rotates humerus laterally
Infraspinatus
stabilizes shoulder joint; rotates humerus laterally
External obliques
aids in trunk rotation and flexing vertebral column
Internal obliques
aids n trunk rotation and flexing vertebral column
Transverse abdominis
compresses abdominal contents
Rectus abdominis
flex and rotate lumbar region of vertebral column
Extensor carpi ulnaris
extends and adducts wrist
Extensor digitorium
extends fingers and wrist
Triceps brachii
extends forearm
Biceps brachii
flexes elbow; supinates forearm
Brachioradialis
flexes forearm
Flexor carpi ulnaris
flexes wrist
Flexor digitorium superificialis
flexes wrist and middle phalanges
Pronator teres
pronates forearm
Sartorius
abducts and medially rotates thigh
Gracilis
adducts thigh; flexes and medially rotates leg
Adductor longus
adducts, flexes, and medially rotates thigh
Tibialis anterior
dorsiflexion and inverts foot
Vastus lateralis
extends and stabilizes knee
Rectus femoris
extends knee
Vastus medialis
extend knee; stabilizes patella
Gluteus maximus
extends thigh
Bicep femoris
extends thigh and flexes knee
Semitendinosus
extends thigh and flexes knee
Semimembranosus
extends thigh and flexes knee
Illiacus
flexes thigh
Gluteus medius
flexes abducts, and laterally rotated thigh
Fibularis (peroneus) longus
plantar flexes and everts foot
Soleus
plantar flexes foot
Author
Anonymous
ID
278329
Card Set
Muscle Action
Description
Muscles and their specific action
Updated
7/7/2014, 4:58:49 AM
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