name the functional unit of lungs.and explain its working
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Alveoli filled with oxy-gen. ;) The functional unit of the lung(Air sacs resembling a cluster of grapes.) They are thin & have moist walls. They are a single layer of cells & surrounded by a network of capillaries
please mark brain list ♥♥♥♥♥♥
Alveoli filled with oxy-gen. ;) The functional unit of the lung(Air sacs resembling a cluster of grapes.) They are thin & have moist walls. They are a single layer of cells & surrounded by a network of capillaries
please mark brain list ♥♥♥♥♥♥
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