Respiration and Circulation — BIOLOGY STD 12 Science — Question

1. Following are some respiratory disorders : Emphysema is caused due to alveolar abnormalities. Chronic bronchitis results into coughing and shortness of breath.
2. Viral and bacterial respiratory diseases. Acute bronchitis, sinusitis, laryngitis and pneumonia are some of the inflammatory diseases caused either due to virus or due to bacteria.
3. Allergens like pollen or pet dander can cause asthma. In asthma constriction of bronchioles takes place causing periodic wheezing and difficulty in breathing.
4. Occupational hazards cause respiratory diseases like silicosis or asbestosis. In these disorders there is inflammation fibrosis leading to lung damage.

Treatments of respiratory diseases:

1. Bacterial diseases can be completely cured by specific antibiotics.
2. Viral diseases need to be taken care of by using vaporizers and decongestants.
3. Asthma needs treatment by inhalers and nebulizers.
4. For occupational disorders proper mask and other protective gear is a must.
5. Lethal diseases like pneumonia should be controlled by medication and rest.