Abdominal-Thoracic-Back Muscles Flashcards by Rachel Junior | Brainscape

Q

External abdominal oblique (fibers go up)

A

compresses anterior abdominal wall

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Q

Internal abdominal oblique (fibers go down)

A

compresses anterior abdominal wall

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Q

Transverse abdominis

A

compresses anterior abdominal contents

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Q

Rectus abdominis (6-pack)

A

compresses anterior abdominal wall

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Q

Serratus anterior

A

abducts and stabilizes scapula

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Q

External intercostals

A

elevates ribs for inspiration

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Q

Internal intercostals

A

depresses ribs for expiration

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Q

Diaphragm

A

expands thoracic cavity for inspiration

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Q

Erector spinae (DEEP)

A

extends and rotates vertebral column

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Q

Rhomboideus minor

A

adducts scapula; stabilizes scapula

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Q

Rhomboideus major

A

adducts scapula; stabilizes scapula

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Q

Trapezius

A

elevates and rotates scapula upward

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Q

Deltoid

A

abducts; rotates arm

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Q

Pectoralis major

A

adducts arm; arm flexion

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Q

Pectoralis minor

A

depresses scapula; elevates ribs

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Q

Latissimus dorsi

A

adducts; medially rotates arm