Question

Please solve it
Please solve it​

Answer 1

Inspiration:

Inhalation of air

Chest move upwards

Diaphragram becomes straight

Surface area of lung increases

Air pressure reduces

Expiration:

Exhalation of air

Chest move downwards

Diaphragram becomes back to concave shape

Surface area of lung decreases

Air pressure increases

Heart beat:

It is the contraction and relaxation of heart

Blood Transfusion:

It is the transfer of blood from one body to another if there is a loss of blood due to some injury.