Download presentation
Presentation is loading. Please wait.
Published byPhilippa Carter Modified over 9 years ago
1
THORACIC CAGE Chapter 7
2
Thoracic Cage Consists of thoracic vertebrae dorsally Ribs are laterally positioned Sternum and Costal Cartilage are anterior
3
Forms a protective cage around organs found in the thoracic cavity Provides support for the shoulder girdle and upper limb
4
Sternum Known as the breastbone lies anteriorly on the body midline Flat bone (3 fused – manubrium, body, xyphoid process) The manubrium (top) articulates with the clavicle and first 2 pairs of ribs The body (middle) articulates with the rib pairs 2 through 7 The xyphoid process (inferior end) does not articulate with any ribs (forms the V at end of cage)
5
RIBS Form the sides of the Thoracic cage with 12 pairs of ribs Attach posteriorly and curve inferiorly toward the anterior of the body The top (superior) 7 pairs are classified as true ribs Attach directly to the sternum via individual costal cartilage Lower 5 pairs of ribs are classified as “false” ribs Attach indirectly to the sternum or lack sternal attachment
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.