ASTHMA: Physiology, Signs, and Symptoms.Presents illustrations on the physiology, signs and symptoms of asthma. Hypersensitivity to an inhaled substance; Histamine attachment to receptor sites; Inhibition of ventilation in the lung bases due to mucous build-up.Fuchs...
The characteristic symptoms ofasthma—wheezing, cough, chest tightness, and shortness of breath—are caused by the sudden tightening of thebronchi(airways) and the production of too much mucus in the lungs. Besides these symptoms, asthma can cause significant changes in the lungs over the short ...
it is not possible to outgrow asthma or for it to go away once you have it. Asthma is a chronic disease that permanently changes your lungs’ airways.8It is possible for symptoms and attacks to lessen or get better over time. However, you are always at risk for those symptoms to return...
Early warning signs are changes that happen just before or at the very beginning of an asthma attack. These signs may start before the well-known symptoms of asthma and are the earliest signs that your asthma is worsening. In general, these signs are not severe enough to stop you from goin...
This WebMD slideshow takes a look at asthma symptoms and treatment options, as well as the most common causes of asthma and what can trigger an asthma attack.
Signs and Symptoms Asthmatic attacks often occur at night or early in the morning. Symptoms can be mild, moderate or severe and life-threatening. During an attack, an asthmatic trigger causes the airway walls to swell, and the muscles around the airways to contract. The airways narrow, and...
Asthma is chronic airway inflammation marked by recurrent airway obstruction. Read about asthma attacks and asthma treatment, types, medications, symptoms, triggers, causes, and prevention.
Many of the symptoms and signs of asthma are nonspecific and can be seen in other conditions as well. Symptoms that might suggest conditions other than asthma include new symptom onset in older age, the presence of associated symptoms (such as chest discomfort,lightheadedness,palpitations, andfati...
Signs and Symptoms Asthma is separated into four categories based on the severity and frequency of a person's symptoms. These categories include mild intermittent, mild persistent, moderate persistent, and severe persistent. Those with mild intermittent asthma may only have occasional episodes and no ...
Allergies and asthma are two (unfortunately) common maladies. Some signs and symptoms of these conditions are obvious, while others are a little sneakier. Here are some of the common (and not-so-common) signs and symptoms of allergies and asthma. Related story 10 Signs and Symptoms of ...