Muscles of Trunk and Arms

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31 Terms

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Biceps brachii - long head

Flexes and Supinates forearm

<p>Flexes and Supinates forearm</p>
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External intercostal

Pulls ribs toward one another to elevate rib cage

<p><span>Pulls ribs toward one another to elevate rib cage</span></p>
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Internal intercostal

pulls ribs together and depresses rib cage

<p>pulls ribs together and depresses rib cage</p>
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Diaphragm

Prime mover of inspiration, flattens on contraction

<p>Prime mover of inspiration, flattens on contraction</p>
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Rectus abdominis

Flex and rotate lumbar region of vertebral column

<p>Flex and rotate lumbar region of vertebral column</p>
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External oblique

Flex vertebral column and compress abdominal wall

<p>Flex vertebral column and compress abdominal wall</p>
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Internal oblique

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Transverse abdominis

Compress abdominal contents

<p>Compress abdominal contents</p>
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Tendinous intersection

Tendon

<p>Tendon</p>
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Linea alba

Tendon

<p>Tendon</p>
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Serratus anterior

Rotates scapula so inferior angle moves laterally and upward

<p>Rotates scapula so inferior angle moves laterally and upward</p>
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Pectoralis minor

pulls scapula forward and downward

<p>pulls scapula forward and downward</p>
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Trapezius

Elevates, retracts and rotates scapula

<p>Elevates, retracts and rotates scapula</p>
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Levator scapulae

Elevates and adducts scapula

<p>Elevates and adducts scapula</p>
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Rhomboid major

Stabilizes scapula

<p>Stabilizes scapula</p>
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Rhomboid minor

stabilizes scapula

<p>stabilizes scapula</p>
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Pectoralis major

Adducts and medially rotates arm

<p>Adducts and medially rotates arm</p>
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Deltoid

prime mover of arm abduction when all fibers contract simultaneously

<p>prime mover of arm abduction when all fibers contract simultaneously</p>
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Latissimus Dorsi

Prime mover of arm extension, arm adductor, medially rotates arm

<p>Prime mover of arm extension, arm adductor, medially rotates arm</p>
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Teres major

Extends, medially rotates, and adducts arm

<p>Extends, medially rotates, and adducts arm</p>
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Coracobrachialis

Flexes and adducts arm

<p>Flexes and adducts arm</p>
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Subscapularis

Rotates arm medially

<p>Rotates arm medially</p>
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Supraspinatus

Initiates abduction of arm

<p>Initiates abduction of arm</p>
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Infraspinatus

Rotates arm laterally

<p>Rotates arm laterally</p>
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Teres minor

Rotates arm laterally

<p>Rotates arm laterally</p>
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Triceps brachii - long head

Forearm extensor

<p>Forearm extensor</p>
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Triceps brachii - lateral head

Forearm extensor

<p>Forearm extensor</p>
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Triceps brachii - medial head

Forearm extensor

<p>Forearm extensor</p>
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Biceps brachii - short head

Flexes and Supinates forearm

<p>Flexes and Supinates forearm</p>
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Brachialis

Forearm Flexor

<p>Forearm Flexor</p>
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Brachioradialis

Synergist in flexing forearm

<p>Synergist in flexing forearm</p>