Q. Out of the 12 pairs of ribs in rib cage of human, how many ribs are true and false, respectively?

 94  162 NTA AbhyasNTA Abhyas 2022 Report Error

Solution:

Ribs are of 3 types:
True ribs (first 7 pairs): Dorsally attached to the thoracic vertebrae and ventrally connected to the sternum with the help of hyaline cartilage.
Vertebrochondral or False ribs (8th, 9th and 10th pairs): These ribs do not articulate directly with the sternum but join the 7th rib with the help of hyaline cartilage.
Floating ribs (11th and 12th pairs): These ribs are not connected ventrally.