Biology
What is meant Dead air space?
Respiratory System
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Answer
Some tidal air is remaining in the respiratory passages such as bronchi and trachea. Here no gas diffusion takes place. This volume is referred to as dead air space and its volume is 150mL.
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Related Questions
The basic structural and functional unit of the lungs is :
- Pleura
- Alveolus
- Capillary
- Diaphragm
The diagram given alongside shows the "Human Respiratory System". Study the same and answer the following questions :
(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 ?
Match the terms given in column A with those of column B
Column A Column B (i) Aerobic (a) Two-lobed (ii) Anaerobic (b) Three-lobed (iii) Trachea (c) Absence of oxygen (iv) Left lung (d) Presence of oxygen (v) Right lung (e) C-shaped cartilaginous rings The muscular sheet which divides the body cavity into thorax and abdomen is termed as :
- Inner pleura
- Rib cage
- Outer pleura
- Diaphragm