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Muscles of the Thoracic Wall
Muscles of the Thoracic Wall
6
Anatomy
Professional
06/19/2009

Additional Anatomy Flashcards

 


 

Cards

Term
External intercostals
Definition

origin:  lower border of ribs

 

insertion:  upper border of rib below

 

intercostal n.

 

elevates ribs in inspiration

Term
internal intercostals
Definition

origin:  lower border of ribs

 

insertion:  upper border of rib below

 

intercostal n.

 

elevate interchondral part of ribs

depresess ribs in expiration

Term
innermost intercostals
Definition

origin:  lower border of ribs

 

insertion:  upper border of rib below

 

intercostal n.

 

elevates ribs

Term
transversus thoracis
Definition

origin:  posterior surface of lower sternum and xiphoid process

 

insertion:  inner surface of costal cartilages 2-6

 

intercostal n.

 

depresses ribs

Term
Subcostalis
Definition

origin:  inner surface of lower ribs near angles

 

insertion:  upper borders of ribs 2 or 3 below

 

intercostal n.

 

elevates rib

Term
levator costarum
Definition

origin:  transverse processes of T7-T11

 

insertion:  subjacent ribs b/t tubercle and angle

 

dorsal primary rami of C8-T-11

 

Elevates ribs

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