Lung Function 2

Question 1

What is the structure-function of the conducting respiratory system?

Answer 1

Airways conduct airflow

Question 2

What is the pathology and examples of conducting respiratory system diseases?

Answer 2

Pathology: ventilation problems -flow velocity problems

Asthma, COPD, bronchitis, bronchiolitis, bronchiectasis, cystic fibrosis

Question 3

What is the structure function of the respiratory zone of the respiratory system?

Answer 3

Alveoli/lung parenchyma function to facilitate gas exchange

Question 4

What is the pathology and examples of diseases of the respiratory zone of the respiratory system?

Answer 4

Pathology: gas exchange problems- may present with volume problems

Examples: pulmonary fibrosis (including pneumoconiosis), hypersensitivity pneumonitis, pneumonia

Question 5

What is the function of mucociliary transport?

Answer 5

The cilia lining the airways beat the mucus covering them away from the alveoli, and toward the pharynx (Mucociliary escalator )

Studies show that ciliary function is inhibited or impaired by cigarette smoke

Question 6

What is chronic bronchitis ?

Answer 6

• Inflammation of the bronchi
• Commonly caused by cigarette smoking
• The number of goblet cells may increase and the mucous glands may hypertrophy
• Cilia movement often is impeded
• Increased mucous gland secretion and increased viscosity of mucous, leads to coughing and obstruction

Cough with sputum expectoration for at Least 3months a year during a period of 2 consecutive years