Synovial fluid is secreted by

How many bones are present in human skeleton ?

Which is the smallest bone in the human body ?

'S' shaped movement in snake is known as

Muscles are attached to bones by

Which one of the following is an example for flat bone ?

Which is the locomotory organ of fish ?

Earthworms move with the help of body muscles and

11^th and 12^th ribs are called as

The outer strong layer which covers the bone is called