“ Respiration is achieved through the mouth, nose, trachea, lungs, and diaphragm. Oxygen enters the respiratory system through the mouth and the nose. The oxygen then passes through the larynx and the trachea which is a tube that enters the chest cavity.
In the chest cavity, the trachea splits into two smaller tubes called the bronchi. Each bronchus then divides again forming the bronchial tubes. The bronchial tubes lead directly into the lungs where they divide into many smaller tubes which connect to tiny sacs called alveoli. The average adult's lungs contain about 300 million of these spongy, air-filled sacs that are surrounded by capillaries.
The inhaled oxygen passes into the alveoli and then diffuses through the capillaries into the arterial blood. Meanwhile, the waste-rich blood from the veins releases its carbon dioxide into the alveoli. The carbon dioxide follows the same path out of the lungs when you exhale.”
Asthma inducers : If you breathe in something you're allergic to- for example, dust or pollen- or if you have a viral infection- for example, a cold or the flu- your airways can become inflamed (red and swollen).
Asthma triggers : If you breathe in an asthma trigger like cold air or smoke, or if you exercise, the muscles around your airways can go into spasm and squeeze together tightly. This leaves less room for air to pass through.
It's important for every person with asthma to know what they triggers and inducers are.
These devices (sometimes called 'puffers') contain a gas that will propel the correct dose of medication when the top is pressed down. This is inhaled into your airways. There are two basic categories of inhaler medicines that are used for asthma:
2 million deaths each year; 100 thousand are children. 36 million will die worldwide between now and 2020. Most cases found in Africa due to the AIDS epidemic. 10 million Americans are currently infected with TB but only 10% will develop the disease.
may have abnormal chest X-ray, or positive sputum smear or culture
Random Facts 53% of last year's TB cases were foreign-born people 1/3 of the world population is infected with TB TB can usually be cured but medication must be taken for up to 9 months Someone somewhere in the world is infected with TB every second India has the largest number of TB patients today.
Your lungs help you to breath. Take a big breathe and you will make your lungs work really hard. Lungs help you to breathe in nice clean air. And breathe out old air. Blood is a really bright red liquid. It runs around your body, helping it to work properly. It also helps stop some nasty bugs