Why do premature infants suffer respiratory failture?
A. sudden changes in the oxygen from the uterine environment
B. mutations in genes regulating the formation of the lungs
C. lungs collapse due to lack of surfactants
Preview next quiz:
For oxygen to become bound to hemoglobin for transport in the blood, which of the following would be true?
A. 2 membranes must be crossed, in and out of the cell lining the lung and then bind directly to the hemoglobin
B. 4 membranes, in and our of the cell lining the lungs, in and out of the endothelial cell lining the alveolar capillary, and then bind directly to hemogloblin
C. 5 membranes – in and out of the cell lining the lung, in and out of the endothelial cell lining the alveolar capillary and into the RBC to bind to hemoglobin