extra

Question 1

how is compliance relates to elastic recoil

Answer 1

Emphysema increases the compliance as there is reduced elastic recoil of the lungs due to long-term damage. Compliance is inversely related to the lung elastic recoil.

Lung surfactant is produced by type II pneumocytes to increase the compliance of the lungs.

Loss of lung connective tissue with age also increases compliance as there are changes to the lungs which reduce their elastic recoil. Compliance is inversely related to the lung elastic recoil.

Question 2

what is lung compliance

Answer 2

Lung compliance is defined as change in lung volume per unit change in airway pressure

Question 3

causes of increased lung compliance

Answer 3

Causes of increased compliance
age
emphysema - this is due to loss alveolar walls and associated elastic tissue

Question 4

causes of decreased lung compliance

Answer 4

Causes of decreased compliance
pulmonary oedema
pulmonary fibrosis
pneumonectomy
kyphosis

Question 5

bronchiectasis is indicated by the daily production of what 3 things

Answer 5

large amounts of sputum, haemoptysis and weight loss.