- Name the surfactant-secreting cells in the lungs.
Type II alveolar epithelial cells (Type II Pneumocytes)
Name one of the most important components of surfactant.
Phospholipids
- What is the function of pneumotaxic centre in respiration?
Inhibits inspiratory activity
- What is the effect of an increase in thr level of blood 2, 3-diphosphoglycerate (DPG) levels on the oxygen-dissociation curve?
The curve shifts to the right
- Through which receptors is Bronchial dilatation by epinephrine mediated?
Beta receptors
- Name the enzyme involved in the formation of carbonic acid.
Carbonic anhydrase
- What is the term used to describe the extent of lung expansion for each unit increase in the transpulmonary pressure?
Compliance
- Name the lung volume which cannot be measured by a simple water spirometer
Residual volume
- What is the volume of air that is expelled out after a maximum forced inspiration called?
Vital capacity
- What is the normal PO2 of venous blood?
40 mm Hg
( nota : kesilapan formula )
( UMS, 2008 )
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