Which of the following tissue form the thin surface for the gas exchange in the lungs ?
A
Epithelial
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B
Connective
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C
Muscle
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D
Nervous
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Solution
The correct option is A Epithelial The alveoli in the lungs are where the gaseous exchange takes place. Alveoli are lined by a single layer of squamous epithelial cells. These are the thin layered cells which allows the passage of the gases through the tissues during external respiration.