Question

Describe the human ribcage in detail. [5 MARKS]

Answer 1

Each point : 1 Mark


Any 5:

• Rib cage occupies the chest region. It is cone-shaped structure made up of 12 pairs of ribs.
• Ribs are attached to vertebrae at the back which curve around to form a cage.
• 10 pairs of ribs are attached to the breast bone at the front.
• 2 pairs of lower ribs are free at front. These are called as free-floating ribs.
• Rib cage is set up in such a way that it can contract and expand during the process of breathing.
• Rib cage protects the underlying lungs, heart and some part of liver etc.