Wednesday, 21 April 2010

Respiratory System, Asthma& smoking

Respiratory System:
Your body is able to store what ever amount of energy it needs but it can't store any amount of oxygen. And so since you can't store the amount you need of oxygen your body takes it in a process called breathing which is the most important function in the respiratory system. We all have two lungs in our ribs that are surrounded by the ribcage and under it the Diaphragm. Every time you inhale the diaphragm contracts and moves downward and so your ribcage expands which produces air pressure inside of your lungs. And so when you take a breath the air comes in from your mouth or your nose and takes it way to the trachea and the lungs. Inside the lungs, the air moves to a smaller tubes which are called bronchial tubes. And so the air spreads to Alveoli which is surrounded by blood which is called Capillaries. From the capillaries the air moves to the blood. And so it gets rid of the Carbon Dioxide which is in your cells and takes it way through the blood into yours. And last the Diaphragm relaxes and exhales the gas out.

Asthma:

People who suffer from asthma feel tightness in their chest, they cough alot and they have a short breath. And so when you breathe the air goes to the tiny sacs(alveoli), which takes the oxygen in and kicks out the Carbon Dioxide. And so we all know that the air we breathe is not always healthy and that clean. What happens during an asthma attack is that when the air wants to get out dust inters and over reacts which will increase the chemicals that will cause the air paths to narrow that will make it much harder to breathe. And so that's why people that have asthma always have their inhalers with them to make it easier for them to breathe.


Smoking:
Smoking is really bad for you and can give you a heart disease easily. Cigarettes are made of a plant which called tobacco and many other chemicals. If instead of putting air in your lungs you put smoke in them it will damage them and they'll start turning black. this will give you a hard time breathing especially if your and athlete. Our a period of time smoking it can cause cancer to your lungs. Nicotine is a very bad chemical that is found in cigarettes which may cause you serious blood problems.

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