Question

given below are the functions of a part present in the human body
It contracts and expands to allow air to fill in or get removed.
It aids during childbirth
It prevents the food from food from rising up. ​

Answer 1

Lungs performs the functions inside the human body.

Explanation:

• The lungs are the part which contract and expand to allow air to fill in or get removed.
• When the lungs expand then the air enters through the mouth and travels through the windpipe and then goes to the lungs.
• After passing in the bronchial tube then it enters in the alveoli.
• By the help of the wall of the alveoli the oxygen enters in the blood vessel.
• At the same time the carbon di oxide enters in the air sac from the blood capillaries.

Answer 2

Answer:

Diaphragm .

Explanation:

Hope this answer will be helpful..