Question

what is respiratory system? please answer it briefly

Answer 1

the system or organ of our body which helps us in breathing air inside and releasing outside is known as the respiratory system.

Answer 2

Hy,
Respiratory system is a system associated with inhale of oxygen and exhaling of Carbon dioxide.
It starts with nose, then, nasopharynx, then the air goes through trachea, then to bronchi. Each bronchi is divided into no. Of bronchioles and each bronchioles is divided into small structures known as alveoli.
These are present in the two lungs.
That's how our respiratory system works.
Hope it helps.
Thanks