Neural canal is present in

The number of bones in the adult human body is

Which one of the following vertebrae of the rabbit has a long and backwardly directed neural spine?

In human beings,the total number of thoracic vertebrae is

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.

Which of the following is not a function of the endoskeleton?