Essay - Asthma Is A Condition of the Bronchial Tubes Characterized by...

Asthma is a condition of the bronchial tubes characterized by episodes of constriction and increased mucous production. A person with asthma has bronchial tubes that are super sensitive to various stimuli, or triggers, that can produce asthma symptom.

In other words, asthmatics have special sensitivity that causes their lung tissue to react far more than is should to ***** stimulating factors or triggers. For th***** reason, people ***** asthma are said to have "twitchy airways."

***** *****s that people with asthma commonly experience ***** chest tightenings, difficulty inhaling and exhaling, wheezing, production ***** large amounts of mucous in their w*****dpipes and coughing.

Coughing can be frequent or intermittent, and ***** be loose-reflecting extra mucous secretion in the airways or dry and deep-reflect*****g tight bronchospasms. Not all these symptoms occur in every case ***** asthma.

Sometimes people may have coughing *****out and ***** for months or even years before it's realized ***** they are asthmatic. Interestingly enough, asthma symptoms are most severe at night, while we're lying down our airways narrow as a result of gr*****vity changes. *****lso ***** lungs do not clear secretions as well ***** night, which leads to ***** retention, and that can increase the obstruction to air flow. Further*****, at night our bodies ***** smaller amounts of certain chemical ***** help to decrease *****way spasms and keep airway tubes open. All of these factors add up to a greater chance of symp*****ms worsening at *****.

An asthma attack begins when the smooth muscles in ***** walls ***** the bronchial tubes start to tighten and narrow when they are exposed to a trigger when this bronchospasm occurs, air can't flow into or out of the lungs. To make matters worse, mucous enters the ********** ***** tubes and plugs them up, causing a further ***** in ***** *****. The bronchi*****l ***** seem to close down, and air moving through ***** narrowed breathing passages can cause wheezing which is a high-pithched-whistlelike sound. Wheezing can be loud ***** ***** be heard across a room, or it can be so slight that is takes a stethoscope to hear it. Airflow obstructions leads to air trapping in lungs. Once trapped, stale ***** builds up in the lungs.

Asthma attacks can be ***** mild they're hardly noticed ***** so severe that ********** can feel like they're suffocat*****g. Although more ***** seem to occur at night, they can virtually happen anytime. Attacks may come on very suddenly, or they ***** develop slowly over a period of hours or days.

Among other contributing factors, asthmatics have an imbalance in their autonomic nervous system that controls the reactivity of ***** windpipes. ***** imbalance *****s *****ir windpipes to become over reactive ***** many different ***** factors, or triggers. An asthmatic trigger can be any stimulus ***** brings about or sets off asthma symptoms.

Asthma ***** vary widely among *****tics. The most common triggers are allergies, irritating substances such as dust, fumes, odors and vapors. Environmental *****, including weather ***** and air pollution, infections, (primarily viral infections such as