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Axial Anatomy > Thoracic Myology Actions > Flashcards

Thoracic Myology Actions Flashcards

1
Q

Primary Inspiration Muscles

A

Diaphragm
Intercostals Externi
Intercostales Interni (parasternal fibers)
Scalenes

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2
Q

Lowers dome (increase vertical volume of lungs

A

Diaphragm

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3
Q

Elevates Ribs

A

Intercostales Externi
Intercostales Interni (Parasternal fibers)
Serratus Posterior Superior
Levator Costarum

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4
Q

Primary muscles of forced inspiration

A 
Serratus posterior (superior and inferior)
Levator costarum
Sternocleidomastoid
Latissimus Dorsi
Pect minor
Pect major (sternal head)
Quadratus Lumborum
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5
Q

Depresses Ribs

A 
Intercostales (interosseous fibers)
Transverse Thoracis (Sternocostalis)
Serratus Posterior Inferior (helps stabilize diaphragm)
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6
Q

Increases Intrathoracic pressure

A

Levator Costarum

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7
Q

Primary Muscles of Forced Expiration

A 
Rectus Abdominis
Oblique Externus Abdominis
Oblique Externus Abdomnis
Transverse Abdomnis
Transverse Thoracis (sternocostalis)
Intercostales Interni (interosseous Fibers)
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8
Q

Decreases Thoracic Volume

A

Transverse Thoracis (sternocostalis)

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Axial Anatomy (6 decks)

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