The lungs manual

The lungs.

You hardly ever think about breathing, unless you are out of breath you are however, breathing constantly by taking air into your lungs and then letting it out again

Lungs are the respiratory Aryans

The lungs are located within the chest and are surrounded by the ribcage. They are made of spongy, elastic tissue. You know that the human body needs oxygen to survive. The lungs give the body all the oxygen it need. Oxygen is needed to produce energy from food. The whole process of obtaining oxygen from the air and using it in the cells to produce energy , is called

Respiration

How does this oxygen reach every cell of the body ? The different organs of the body work together to perform this task.

The three main organs involved in respiration are the air passages, the lungs and the diaphragm .

Air passages

The air that you breathe in is not always very pure. It needs to be cleaned , moistened and warmed before it reaches you'd lungs. The nose and the trachea are the air passages that perform the job of cleaning , moistening and warming the air.

The nose and the trachea have tiny hairs called cilia and a sticky substance called mucus. The mucus traps dust particles and some bacteria present I.n the air . The cilia act like tiny brooms to sweep out the dust caught in the mucus. They help keep the lungs clean. They carry the dues back to the throat. You can get rid of the mucus by coughing or swallowing

Diaphragm

This is a sheet of muscle which separates the lungs form the abdomen . It help the lungs to expand and contract when you breathe in and out.

Lungs

The trachea is the tube through which air enters the lungs. Before it joins the lungs, the trachea divides into two branches called bronchi (singular:bronchus ). The left bronchus goes to the left lungs and the right bronchus goes to the right lungs in the lungs’ the bronchi further divid in to smaller branches called bronchioles. At the end of the bronchioles there are small bag-like structures called air sacs or alveoli which have thin, moist walls through which gases can pass. The exchange of gases takes place in the tiny blood vessels called capillaries which surround the alveoli. Here the oxygen is absorbed into the blood cells, and carbon dioxide is removed from the blood.

Inhaling oxygen and exhaling carbon dioxide"

You breathe in to get oxygen. You breathe out to remove carbon dioxide and other gases from the blood. The air that you breathe in is called inhaled air, and the air that you breathe out is called exhaled air.