What Takes place when you inhale and exhale

Sagot :

When you inhale- the intercostal muscles contract, expanding the rib cage the diaphgram contracts, pulling downwards to increase volume of the chest.
When you exhale- the intercostal muscles relax, rib cage drops inwards and downwards
Life cycle between plants and human being. When we inhale, we receive oxygen from plants, and when we exhale, we produce carbon dioxide that plants needed.