Where are the occipital condyles located?

Axis vertebra is identified by

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

In human beings,the total number of thoracic vertebrae is

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

Read the following Assertion $(A)$ and Reason $(R)$ and choose the correct option.
Assertion $(A):$ All $12$ pairs of ribs are called bicephalic.
Reason $(R):$ Each rib is connected dorsally to the vertebral column by $2$ heads of articulation.