RESPIRATORY SYSTEM

The respiratory system

Though respiration we take in the in the oxigen our cells need to transport into energy and our body releases the carbon dioxide it doesn´t need.

In the repiratory system there are two processes:

Pulmonary ventilation and gas exchange

Pulmonary ventilation is the moment of air into and out of the lungs.This process is performed by the inspiration and expiration.

Inspiration:

During inspiration, your diaphragm contracts and your chest cavity expands.

 1. Notrils where it is warmed up and cleaned of imputities by mucus and 
     the fine hairs inside the nasal cavities.
 2. The air travels through larynx ,into your windpipe, then into your bronchi 

     and  your bronchioles and finally reaches your lungs.

Expiration:

During expiration,your diaphragm relaxes and your chest cavity contracts.Your lungs deflate and became smaller. Now,the air goes up through your bronchioles,bronchi,windpipe and larynx and leaves the body through your nostrils.

Gas exchange:
In your lungs you have alveoli. It is here that gas exchange occurs. During this process, oxygen from the outside air passes into your blood and carbon dioxide which is in the blood passes to your lungs and leaves your body.

This parts travel around the body by:
 1.Air enters the body through the notrils.
 2.The air travels down through;
    The larynx,the windpipe, the brochi and the bronchioles, and finally reaches the lungs.
 3.Gas exchange takes place in the alveoli.


This are the parts of the repiratory system:

Fun facts
1. The right lung is  larger than the left.
2. Hairs in the nose help to clean the air we breathe and warm it.
3. The highest  "sneeze speed" is 165 km per hour.
4. The capillaries in the lungs would extend 1,600 kilometres if placed end to end.
5. We lose half a litre of water a day through breathing. 
6. A person at rest usually breathes between 12 and 15 times a minute. 
7. Is faster in children and women than in men,