Block D

(TRAY-kee-uh} is sometimes called the windpipe. The trachea filters the air we breathe and branches into the bronchi.Trachea The trachea Contents (BRAHN-ky) are two air tubes that branch off of the trachea and carry air directly into the lungs. Bronchi The bronchi Contents (DY-uh-fram). When you breathe in, the diaphragm contracts.

hiiiiiiii

As a kid, I would chit chat and joke with my siblings all the time during our meal times. My mom would get so upset and say in Hindi, "don't talk while eating, the food would get into your wind pipe". We would all then laugh and imitate her.... I later learnt that there is something that is called the wind pipe and its our trachea. I like the word wind pipe better. hehe

This photo (courtesy of the Anatomical Institute, Bern) shows a rubber cast of human lungs. Air enters the nostrils passes through the nasopharynx, the oral pharynx through the glottis into the trachea into the right and left bronchi, which branches and rebranches into bronchioles, each of which terminates in a cluster of alveoli Only in the alveoli does actual gas exchange takes place.

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Wow Heeyoon, thats cool

Hay Fever A form of allergy due to the pollen of grasses, trees, and other plants, characterized by inflammation of the lining of the nose and sometimes of the conjunctiva.

Has anyone experience hay fever?? Never really experienced it. wonder how it must feel???? The symptoms sound bad, not really pleasant to go through this kind of thing. How dangerous can it get if not treated?? Any idea??

Diseases of respiratory system Asthma causes breathing difficulty. Also lung cancer caused by cigarette smoke. Some other ailments involving the respiratory system are respiratory infections, including tuberculosis, pneumonia and influenza.

Coughing is of major importance, as it is the body's main method to remove dust, mucus, saliva, and other debris from the lungs. Inability to cough can lead to infection. Deep breathing exercises may help keep finer structures of the lungs clear from particulate matter, etc.