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Orbicularis oculi
closes the eyes
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Temporalis
closes the jaw
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Masseter
elevates mandible; jaw closure
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Sternocleidomastoid
flexes and laterally rotates head
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Buccinator
compresses the cheek; keeps food between grinding teeth
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Orbicularis oris
purses lips; closes lips
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Zygomticus
raises lateral corners of mouth upward; smiling
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Internal intercostals
depresses rib cage
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Pectoralis minor
draws scapula forward and downward; moves rib cage up
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External intercoastals
elevates rib cage
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Latissimus dorsi
extends arm; adducts and medially rotates at shoulder
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Pectroalis major
flexes arm; rotates arm medially; adducts arm
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Trapezius
stabilizes, raises, retracts, and rotates scapula
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Supraspinatus
stabilizes shoulder; initiates abduction
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Teres major
extends, medially rotates and adducts humerus
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Infraspinatus
rotates humerus laterally, stabilizes shoulder join
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External obliques
aids in trunk rotation and flexing vertebral column
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Internal obliques
aids in trunk rotation and flexing vertebral column
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Transverse abdominis
compresses abdominal contents
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Rectus abdominis
flex and rotate lumbar region of vertebral column
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Extensor carpi ulnaris
extends and adducts wrist
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Extensor digitorum
extends fingers and wrist
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Triceps brachii
extends forearm
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Biceps brachii
flexes elbow; supinates forearm
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Brachioradialis
flexes forearm
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Flexor carpi ulnaris
flexes wrists
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Flexor digitorum superficialis
flexes wrist and middle phalanges
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Pronator teres
pronates forearm
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Sartorius
flexes, abducts, laterally rotates thigh, flexes knee
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Gracilis
adducts thigh; flexes and medially rotates leg
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Adductor longus
adducts, flexes, and medially rotates thigh
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Tibialis anterior
dorsiflexion and inverts foot
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Vastus lateralis
extends and stabilizes knee
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Rectus femoris
extends knee; flexes thigh at hip
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Vastus intermedius
extends knee
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Vastus medialis
extends knee; stabilizes patella
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Gluteus maximus
extends thigh
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Bicep femoris
extends thigh and flexes knee
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Semitendinosus
extends thigh at hip; flexes knee
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Semimembranosus
extends thigh and flexes knee
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Illiacus
flexes thigh; flexes trunk (bowing)
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Gluteus medius
abducts and medially rotates thigh
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Fibularis (peroneus) longus
plantar flexes and everts foot
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Soleus
plantar flexes foot
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