the cilia filtrate the air going into the system
Don't let anyone remove it.
by the water in the ocean
fresh clean air
mucus
The esophagus
This is mostly the respiratory system though it does include parts of the cardiovascular system.The respiratory system; more specifically, it happens in the alveoli of the lungs.
They clean the water you drink
Mucus in the nose helps trap particles entering the respiratory system. The hairs/cilia of the respiratory system also filter incoming air.
The physiological function of the respiratory system is helping our body breathe clean air (oxygen) and breathing out carbon dioxide.
It helps us to breathe more comfortable.
The respiratory system is there so you can breath air in and exhale out. When you breath in your breathing in air, but what your really breathing out when you exhale is carbon dioxide. So what your respiratory system does is it takes in clean air and disposes the carbon dioxide from your lungs.
The respiratory system is the system that handles breathing.
The oxygen system should be kept clean and dust-free.