A disease process that causes decreased ability of the lungs to perform their ventilatory function and can result from several other chronic disorders of the respiratory organs is called:

Chronic obstructive pulmonary disease (COPD)

Explanation:

Chronic obstructive pulmonary disease (COPD) is usually defined as the summation of all the diseases that are associated with lungs. A person suffering from this disease faces difficulty in breathing. It directly affects the respiratory organs of human bodies.

Some of the main cause of this disease is smoking cigarettes, exposure to pollution, dust and chemical fumes. It can be considered as a deadly disease. Some of its symptoms are short breathing, constant cough associated with the production of sputum, and difficulties in breathing.

Chronic obstructive pulmonary disease (COPD)

Explanation:

Chronic obstructive pulmonary disease refers to the chronic inflammation condition of the lungs which prevents the flow of the air in the lungs.

The COPD leads to other condition which affects the upper respiratory system like chronic bronchitis and the Emphysema. Emphysema destroys the alveoli of the lungs whereas chronic bronchitis affects the bronchioles of the respiratory system.

Thus, Chronic obstructive pulmonary disease is correct.