Biology
What is meant Residual air?
Respiratory System
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Answer
Even after forcibly breathing out, some air always remains in the lungs. This air is referred to as residual air. The volume of this air is 1500mL.
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(i) Label the guidelines 1 to 4.
(ii) Define the structure shown as part 2.
(iii) Name the basic structural and functional unit of part 3.
(iv) Write one specific structural feature of the inner lining of part 1.
(v) What is the muscular sheet on which part 3 rests ?
Describe in brief the function of ribs and diaphragm in breathing.