Rib cage is formed by

How many bones are present in the cranium? Name them.

Select the correct function of the vertebral column in humans.

Out of $X$ pairs of ribs in humans,only $Y$ pairs are true ribs. Select the option that correctly represents the values of $X$ and $Y$ and provides their explanation.

The vertebrae articulate with each other by the process called

The long shaft of a bone is called as: