The Respiratory System

external image respiratorysystem.gifexternal image bronchi-bronchioles-alveoli.jpg

1. Respiration is the entire process by which a body obtains and uses oxygen and gets rid of carbon dioxide and water in the oxygen.
2. Your body needs a continuous supply of oxygen in order to obtain energy from foods you eat.
3. The air you breathe is a mixture of several gases, such as oxygen, then when your body absorbs the oxygen, carbon- dioxide is added to the air from your body.

Functions of the Organs

Nose - The nose is the passageway into and out of the respiratory system. Oxygen is inhaled in to the nose and when it comes out it is warm and moist surfaces. Air can also leave and enter in the body by your mouth.

Pharynx - Pharynx is also called your throat. When you breath through your nose or mouth, the air flows into the Pharynx. The pharynx has two tubes. One leads to the stomach and is called the esophagus and the other leads to the lungs and is called the larynx.

Larynx - If you put your head up a little bit, and rub your finger up and down on the front of your throat, you can feel a bump. That is your Larynx. It has elastic bands, which stretches across the Larynx, which is called the vocal cords. When air flows between the vocal chords, they vibrate and make a sound.

Trachea - The Trachea is divided into two parts of your lungs. The Trachea also is a windpipe that travels air to the lungs. It branches into your Bronchi.

Bronchi - Bronchi are two tubes. Each bronchus goes into each of the lungs and spreads out into tiny tubes called
bronchiole. The bronchiole connects to the alveoli and it is where oxygen exchanges occurs


**Lungs** - Each bronchiole in the lungs has tiny sacs called alveoli. Capillaries surround each of them.

Alveoli - A tiny, thin-walled, capillary-rich sac in the lungs where the exchange of oxygen and carbon dioxide takes place. Also called
air sac.

Heart - It clears the bad blood and pumps the good blood into the whole body and it is one of the main body functions
http://en.wikipedia.org/wiki/Diaphragm_(anatomy)|Dipharagm - A strong muscle below your lungs that pushes oxygen in and out.

Respiratory disorders - There are many different types of respiratory disorders and millions or people suffer from them. Some respiratory disorders are asthma, bronchitis, pnuemonia, and emphysema. Asthma makes the tissue around the bronchioles to constrict and secrete lots of muscus. In Bronchitis something is irratating the lining of the bronchioles. In Pnuemonia bacteria and viruses grow inside the bronchioles and alveoli and they swollen up and become filled with fluid. Emphysema is when you have trouble getting oxygen when you need it because you lung tissues erodes away. You can get Emphysema by smoking and it can also cause cardiovascula diseases too.

Interesting site about the
**resporitory System** from the **world book online**.


Dr.Johans Info....

The Respiratory system

  • Your body needs a continuous supply of oxygen in order to obtain energy.
  • The air your breathe is a mixture of several gases, such as oxygen.
  • Then when your body absorbs oxygen, carbon dioxide goes out.
From start to end
  • Your nose and mouth are the primary passageways into and out of your body.
  • From the nose or mouth, air flows into the pharynx or throat. The pharynx branches into two tubes, one goes to the stomach, and the other one goes to the larynx.
  • The larynx or voice box contains the vocal cords. when air flows between the vocal cords the vibrate and makes sounds.
  • The tracheaor windpipe is the passageway from the larynx to the lungs
  • Later the trachea splits into two tubes called the bronchi. Each tube goes to one lung and, than branches into thousand of tiny tubes called bronchioles.
  • Your body has to two large spongelike lungs. In each lung, bronchioles branches, and form tiny sacs called alveoli. Capillaries surround each alveolus.
Respiratory Disorders
  • Millions of people suffer from repiratory disorders
  • The different repiratory disorders such as asthma, bronchitis, pneumonia, and more.
  • Smoking damages your cilias, small hairs inside the bronchioles.

If you want to learn more go to these websites...

Cool Body Functions
Health
Inside the Human Body
Life Center

You want to see some pictures....

respiratorydetail.gif
Source of Picture: www.ama-assn.org/ama1/pub/upload/images/446/respiratorydetail.gif
This is the the whole Respiratory System from the nose to the lungs.

lungs.jpg
Source of Picture: www.uh.edu/engines/lungs.jpg
What you see here is a good lung thats health and strong, and here is a bad lung, that has been damages, and it's unhealthy, and weak.