Asthma is a chronic disorder that causes

The correct answer is inflammation in the airway.

• Asthma is an inflammatory disease of the airways to the lungs which makes breathing difficult and affects some physical activities in humans.

Key Points

• In this disease, the air passages of the lungs become too narrow because of excessive production of mucus.
• The most common symptoms of asthma include wheezing, tightness in the chest, fatigue, coughing, and shortness of breath.
• Cystic fibrosis is a hereditary disease that affects the lungs and digestive system.
• It can be life-threatening.

Additional Information 

• Pneumonia is an infection that causes the inflammation of the air sacs in one or both lungs. It is caused by a variety of organisms, including bacteria, viruses, and fungi.
• Tuberculosis (TB) is a contagious infection that attacks our lungs. It is caused by a type of bacteria called Mycobacterium tuberculosis.