In which part or organ of human body cartilage is NOT found ?

Cartilage is NOT found in

Which one of the following body parts/organs of the human body does not have smooth muscles?

Which of the following is the smallest bone in the human body?

Which one of the following is the correct sequence of organs that occur in the path of urine flow in human body?

Which one of the following salts is found in maximum amount in the human bones?