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Respiratory Diseases - Diseases of the Human Respiratory System

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Asthma

Perhaps the most commonly discussed respiratory disease after the common cold is asthma. The word asthma is derived from a Greek work meaning "breathlessness" or "panting", both of which accurately describe an asthma attack. It is, however, not just another "breathing problem". To physicians who treat asthma, it is a serious medical condition" untreated asthma can be fatal.


Asthma is a condition in which the airways of the lungs become either narrowed or completely blocked, obstructing normal breathing. This obstruction of the lungs, however, is reversible, either spontaneously or with medication. That is why asthma is technically called Reversible Obstructive Airway Disease (ROAD)

Air reaches the lung through the windpipe (trachea), which divides into two large tubes (bronchi), one for each lung. Each bronchi further divides into many little tubes (bronchioles), which eventually lead to tiny air sacs (alveoli), in which oxygen from the air is transferred to the bloodstream, and carbon dioxide from the bloodstream is transferred to the air.

Although everyone's airways have the potential for constricting in response to allergens or irritants, the asthmatic's airways may become obstructed by constriction of the muscles surrounding the airway or inflammation and swelling of the airway or increased mucus production which clogs the airway.

Once the airways have become obstructed, it takes more effort to force air through them and breathing becomes laboured. This forcing of air through constricted airways can make a whistling sound, called wheezing. Irritation of the airways by excessive mucus may also provoke coughing.

Because exhaling through the obstructed airways is difficult, too much stale air remains in the lungs after each breath. This decreases the amount of fresh air which can be taken in with each new breath, so not only is there less oxygen available for the whole body, but more importantly, the high concentration of carbon dioxide in the lungs causes the blood supply to become acidic. This acidity in the blood may rice to toxic levels if the asthma remains untreated.

Asthma episodes can be triggered by a variety of factors, most notably allergens, infections, environmental pollutants, and nonspecific stimuli such as exercise and emotional states.

Between 50 and 70 per cent of adults with asthma suffer from allergies. In children under three years of age, viral infections are likely to be the most common trigger. After three years, allergies also begin to play an increasing role as a trigger. After 20 years of age, occupational exposure to toxic substances and allergens also can be important triggers for asthma.

Common allergens associated with asthmatic responses are:

Foods
:

Nuts, peanuts, chocolate, eggs, citrus fruits, milk

Plants or plant products:


Pollens, grasses, mold spores

Animal or insect materials:


Dust mites, animal dangers, feathers, canine or feline saliva Numerous scientific studies have shown that avoidance of specific allergens in patients with asthma who have been previously sensitized will result in improved asthma symptoms and decreased medication requirements.

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Guys am called Timan, My case is quite an understandable because I have encountered Multi-drug Resistant TB, due to continues treatment failures I gave up my treatment and current exploiting antibiotics for my health maintenance,yet I have no idea howsoever,weather get well.I don't smoke nor even take alcohol so what could be the cause of this treatment failures?A will there be apossible treatment for me?please guys get for me a way forward.
0956626 Sunday, October 19, 2014
I AM SHORT OF BREATH AND HAVE HAD THIS SINCE I WAS DIAGNOSED WITH ULCERATED COLITIS.ABOUT TWO YEARS AGO. I GAVE UP SMOKING APPROXIMATELY 2-3 YEARS BEFORE I GOT COLITIS. IT IS VERY FRIGHTENING AT TIMES AND THAT SURELY DOESN'T HELP.I PLAY TENNIS BUT FIND THAT REALLY DIFFICULT BECAUSE OF MY BREATHLESSNESS. PLEASE CAN SOME ONE HELP ME.
Campbell Wednesday, November 14, 2012
My nephew suffered with ulcerative colitus fo 10 years. He cured himself in 3 months with a product called "Aloe Vera Elite" you can order it online; from the desk of the Healthyheartpoet
healthyheartpoet Monday, February 18, 2013
You people are just sad
Aneesa Monday, January 30, 2012
How many different respiratory conditions are there??!!!
sing.song-17 Sunday, January 22, 2012
i love reading about different respiratory diseases because its my subject and i need more information to increase my knowledge and to be expert of what i like
saher_ahmad Saturday, November 26, 2011
thats not funny! it's a real virus!
Bailey11 Thursday, April 22, 2010
what the hell are you talking about?
jkjhjihuihuih Tuesday, November 29, 2011
about the respiratory system!
twilight Wednesday, November 07, 2012
I am in 3 grade and i like reading about the cold. I had 4 colds in the last year and i think i was die, but i am all better now and my nose does not look like rodolf anymore. and when i wake up their is no more snot on my pillow.
Meiscool Thursday, October 29, 2009
wow
guest Wednesday, November 25, 2009
Your not funny.
darthroti Friday, January 27, 2012
Hey guys,

Just a quick tip from a uni student. Don't forget that while you're looking for good info about respiratory diseases, consider this: 'Is this site prepared by academic or medical staff?'

Suzanne

Suzanney Thursday, August 06, 2009
Don't be a bitch Suzanne
guest Saturday, January 09, 2010
That a very dumb thing for u to say it must fit ur personality huh;
guest Thursday, January 14, 2010
hahahah - that just made my day...
guest Sunday, April 04, 2010
i think Suzanne madam is right
guest Sunday, May 02, 2010
I'm only here with good intentions. Take it or leave it =]
Suzanney Sunday, May 02, 2010
that`s mean. don`t say that to anyone again.
guest Tuesday, May 18, 2010
I to am a 7th grade student that suffers from asthma. I usually have asthma attacks in the winter, but just in case i bring a inhaler with me at ALL TIMES. i was diagnosed with astma in the third or fourth grade once my parents split up. learning more and more about asthma is fun and at the same time interesting. learning new things is exciting. especially if you can relate to it. currently at this time i havent had a asthma attack for several months, but who knows it just might sneak up on me. ;]
Young_DBZ Friday, May 29, 2009
I love reading about different respiratory problems because i have to suffer with asthma myself. I am in 7th grade and i am doing a project on the body systems and we were able to chose between eight different systems and i chose respiratory system. I never new how many diseases there are out there until i started researching and now im attached on learning more about it and i hope that other people relize how dangerous asthma can really be. Many people tease me about it when i end up using my inhaler. so i just wanted to get that out there. I hope to read more and more about this.
Allyssa95 Sunday, May 24, 2009
Hey! looks like we have something in common about that asthma thing.Do you have severe asthma and more frequent attacks or just occasional.
Young_DBZ Friday, May 29, 2009
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