Muscles of thoracic wall Flashcards by Märtha Lantz | Brainscape

Q

M. serratus dorsalis cranialis

A

Draws the ribs forwards; extends the thorax

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Q

M. serratus dorsalis caudalis

A

Draws the ribs backwards; contracts the thorax

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Q

M. intercostales externi

A

Draws the ribs forwards; extends the thorax

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Q

M. subcostales

A

Supports the internal subcostal muscles

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Q

M. retractor costae

A

Draws ribs backwards

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Q

M. rectus thoracis

A

Draws first 3 ribs forward; extends the thorax

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Q

M. transversus thoracis

A

Contracts the thorax

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Q

M. intercostales interni

A

Draws ribs backwards; contracts the thorax

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Q

M. levatores costarum

A

Draws ribs forward; extends the thorax

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