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Muscles #2
Muscles #2
60
Anatomy
Undergraduate 1
10/14/2009

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Cards

Term
Masseter
Definition
closes jaw by elevating mandible
Term
Mentalis
Definition
raises and protrudes lower lip
Term
Orbicularis Oris
Definition
closes lips, protrudes lips, shapes lips during speech
Term
Orbicularis Oculi
Definition
closes eyes, squinting, blinking
Term
Frontalis
Definition
raises eyebrows and skin of forehead
Term
Occipitalis
Definition
pulls scalp posteriorly, connects to frontalis
Term
Platysma
Definition
pulls corners of mouth downward
Term
Sternocleidomastoid (SCM)
Definition
rotates head toward opposite side, neck flexion when both SCM activated
Term
Pectoralis Major
Definition
adduction of shoulder, horizontal adduction of shoulder, and internal rotation of shoulder
Term
Pectoralis Minor
Definition
moves scapula anteriorly, elevates ribs during breathing
Term
Intercostals
Definition
depresses the ribs during exhalation and elevates the ribs during inhalation
Term
Rectus Abdominis
Definition
flexes trunk
Term
External Obliques
Definition
rotates trunk, flexes trunk
Term
Deltoid
Definition
abducts the shoulder, also flexes, extends, internally rotates and externally rotates shoulder
Term
Biceps Brachii
Definition
flexes the elbow, supinates forearm, flexes shoulder *
Term
Brachialis
Definition
flexes elbow
Term
Triceps Brachii
Definition
extends elbow, extends shoulder *
Term
Subscapularis
Definition
internally rotates shoulder
Term
Supraspinatus
Definition
abducts shoulder (works along with shoulder ERs)
Term
Infraspinatus
Definition
externally rotates shoulder
Term
Teres Minor
Definition
externally rotates shoulder, extends shoulder
Term
Teres Major
Definition
internally rotates shoulder, extends shoulder
Term
Levator Scapulae
Definition
elevates scapula
Term
Rhomboid Minor
Definition
adducts / retracts scapula
Term
Rhomboid Major
Definition
adducts / retracts scapula
Term
Serratus Anterior
Definition
rotates scapula, protracts scapula
Term
Brachioradialis
Definition
flexes elbow
Term
Pronator Teres
Definition
pronates forearm
Term
Flexor Carpi Ulnaris
Definition
flexes wrist, adducts wrist
Term
Flexor Digitorum
Definition
flexes wrist, flexes fingers *
Term
Flexor Carpi Radialis
Definition
flexes wrist, abducts wrist
Term
Supinator
Definition
supinates forearm
Term
Extensor Carpi Ulnaris
Definition
extends wrist, adducts wrist
Term
Extensor Digitorum
Definition
extends wrist and extends fingers *
Term
Extensor Carpi Radialis Longus
Definition
extends wrist, abducts wrist
Term
Trapezius
Definition
extends neck, elevates, depresses, rotates, adducts, and stabilizes
Term
Latissimus dorsi
Definition
extends humerus, adducts humerus (wwimming)
Term
Erector Spinae
Definition
extends trunk
Term
Gluteus Maximus
Definition
extends hip
Term
Gluteus Medius
Definition
abducts hip, stabilizes pelvis during gait
Term
Tensor Fascia Latae (TFL)
Definition
abducts hip, flexes hip
Term
Psoas Major
Definition
flexes hip
Term
Iliacus
Definition
flexes hip
Term
Rectus Femoris
Definition
flexes hip, extends knee *
Term
Vastus Lateralis
Definition
extends knee
Term
Vastus Intermedialis
Definition
extends knee
Term
Vastus Medius
Definition
extends knee
Term
Adductor Group
Definition
adducts hip
Term
Gracilis
Definition
adducts hip, flexes knee *
Term
Semimembranosus
Definition
extends hip, flexes knee *
Term
Semitendinosus
Definition
extends hip, flexes knee *
Term
Gastrocnemius
Definition
plantarflexes ankle, flexes knee *
Term
Soleus
Definition
plantarflexes ankle
Term
Tibialis Posterior
Definition
inverts ankle
Term
Peroneus Longus
Definition
everts ankle, plantarflexes ankle *
Term
Peroneus Brevis
Definition
everts ankle, plantarflexes ankle *
Term
Tibialis Anterio
Definition
dorsiflexes ankle, inverts ankle
Term
Biceps Femoris
Definition
extends hip, flexes knee *
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