How many ribs are present in the human body ?

Which is the muscle present in each side of neck ?

Which vitamin is synthesized in the skin ?

The arectorpili is the ___________ type of muscle,necessary to move the hair.

Which is the outermost layer of the skin ?

How many bones are present in human body ?

_______________ is the inner layer of the skin .

Which is the locomotory organ of starfish  ?

Which is middle layer of the skin ?

Name the gland which secretes sebum .