Explain the pathology and treatment of respiratory distress syndrome in infants.
What will be an ideal response?
Answer: In some cases, especially when the baby is born prematurely, the newborns' type II alveoli cells are underdeveloped, leading to a low amount of surfactant being produced within the lungs. Since the alveoli are coated with water that is not diluted with surfactant, the surface tension of the water produces a force that decreases lung compliance making it much more difficult to expand the lungs during inspiration. The varying surface tension between neighboring alveoli of differing radii also leads to collapse of the alveoli with a smaller radius. Respiratory distress syndrome is treated by inserting artificial surfactants into the lungs, and mechanically ventilating the lungs.
You might also like to view...
For every atom of carbon in a carbohydrate
A. there is approximately one atom of hydrogen.?B. there are approximately two atoms of hydrogen.?C. there are approximately three atoms of hydrogen.?D. there are approximately four atoms of hydrogen
Judy runs 50 miles a week. She and her husband have been trying to conceive for three
years, with no luck. Her disturbed reproductive cycles and infertility are due to A) increased synthesis of estrogens. B) decreased secretion of adrenal androgens. C) increased secretion of adrenal androgens. D) decreased synthesis of estrogens.
Which of the following occurs during depolarization?
A) Voltage-gated potassium channels open. B) Some voltage-gated sodium channels inactivate. C) Sodium flows into the cell. D) Both A and C occur. E) All of the above occur.