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9 Cards in this Set

  • Front
  • Back

True vs False ribs

7 true ribs - connect to sternum through own costal cartilage



5 false ribs - 8,9, and 10 attach to costal cartilage of rib above. 11 and 12 "floating ribs".

Parts of sternum

Manubrium (handle) - attaches to clavicles and 1st costal cartilage, demi facets for 2nd costal cartilage



Sternal angle (of Louis) - articulation of manubrium and body



Body - T5-9, develops from 4 sternebrae



Xiphoid - T10, ossifies in middle age

Openings at top and bottom of rib cage

Thoracic aperatures

Thoracic outlet syndrome

Compression of brachial plexus and/or subclavian artery by injury or C7 thoracic vertebrae or other cause. Can cause digital necrosis (lack of blood flow and thrombus formation.

Pectus Carnatum

"pigeon chest', sternum protrudes outward because ribs are bent outward. Can have surgery to correct by removing costal cartilage and allowing it to reform

Pectus Excavatum

"stove in chest", sternum pushed inward by ribs bent inward. Can be corrected through surgery to remove costal cartilage.

Joints of the thorax

Costovertebral (head of rib joints), synovial
 
Costochondral (rib -> CC), not synovial
 
Interchondral (7,8,9th CC, costal margin, synovial)
 
Sternocostal (1st is fibrocartilaginous, 2-7 synovial)

Costovertebral (head of rib joints), synovial



Costochondral (rib -> CC), not synovial



Interchondral (7,8,9th CC, costal margin, synovial)



Sternocostal (1st is fibrocartilaginous, 2-7 synovial)

Serratus posterior

Costal muscles, blood supply, and innervation