Notes from NEET topper

Ribs

Structure and Composition:

  • The rib cage consists of 24 ribs, 12 on each side of the body.
  • Ribs are categorized into true ribs (first seven pairs), false ribs (next three pairs), and floating ribs (last two pairs).
  • True ribs attach directly to the sternum via costal cartilages, false ribs attach indirectly, and floating ribs do not attach to the sternum.

Functions:

  • Protect vital organs, especially the heart and lungs.
  • Provide support for the upper body.
  • Assist in breathing by changing the volume of the thoracic cavity.