Thoracic Cage

Thoracic Cage

By Andrew Nelson

Objectives

• Locate and identify the bones and the major features of the bones of the thoracic cage

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Some text here about the topic of discussion

• Ribs

• Thoracic vertebrae

• Sternum

• Costal Cartilage that attachs ribs to sternum​

Thoracic Cage

• Pectoral girdle

• upper limbs

• protect the viscera in thoracic and abdominal cavities

• Plays role in breathing​

Bones Support..

Multiple Choice

How many ribs are there?

• 12

• 24

• 36

• 6

• 24 is the usual number

  Vertebrosternal ribs (first 7) are joined to sternum directly

• Flas ribs (final 5) does not directly attach​

• Last 2/3 called floating ribs​

​Ribs

• Posterior end is enlarged (head) that articulates (connects) to the next higher vertebra.

• Attaches to transverse process of the vertebra​

​Ribs

• midline, anterior portion of the thoracic cage

• Three parts

  • manubrium (articulates with the clavicle)

  • middle body

  • xiphoid​ process

​Sternum

Open Ended

What bones make up the thoracic cage?

Multiple Choice

Which is not a part of the sternum?

• Mandible

• Manubrium

• xiphoid

• body

Multiple Choice

Where on the vertebra does the rib attach?

• Spinous Process

• Anterior Processes

• Transverse Processes

• Pedicles