What are $P$ and $Q$ in the given bones?
$\quad \quad P\quad \quad \quad Q$

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

How many bones are present in the human trunk?

The axial skeleton is made up of:

In mammals,the largest vertebra is

Which of the following statements are correct with reference to the human endoskeleton?
$A$. Human skull is monocondylic.
$B$. The joint between any two adjoining vertebrae is a cartilaginous joint.
$C$. In human beings,the number of cervical vertebrae is seven.
$D$. All ribs except the last $2$ pairs are bicephalic.
$E$. The occipital bone of the skull is articulated with the atlas vertebra.
Choose the correct answer from the options given below: