The number of vertebrae in a human is $ . . . . . . $.

In mammals,the zygomatic arch is formed by

Presence of a foramen for an artery is a characteristic of which bone?

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

In humans,the knob-like projection of the second cervical vertebra helps in the rotational movement of the head. What is it called?

The human skeleton is divisible into which parts? Name them.