Question

The figure shows a diagrammatic view of human respiratory system with labels A, B, C and D. Select the option which gives correct identification and main function and/or characteristics.
Breathing and Exchange of Gases mcq question image

A. B-pleural membrane-surrounds ribs on both sides to provides cushion against rubbing
B. C-Alveoli-thin walled vascular bag like structures for exchange of gases  
C. D-Lower end of lungs-diaphragm pulls it down during inspiration
D. A-trachea-long tube supported by complete cartilaginous rings for conducting inspired air
Answer :   C-Alveoli-thin walled vascular bag like structures for exchange of gases

Releted MCQ Question on
Zoology >> Breathing and Exchange of Gases

Releted Question 1

Select the correct events that occur during inspiration.
(i) Contraction of diaphragm
(ii) Contraction of external inter-costal muscles
(iii) Pulmonary volume decreases
(iv) Intra pulmonary pressure increases

A. (iii) and (iv)
B. (i), (ii) and (iv)
C. Only (iv)
D. (i) and (ii)
Releted Question 2

Select the correct statement.

A. Expiration is initiated due to contraction of diaphragm
B. Expiration occurs due to external intercostal muscles
C. Intrapulmonary pressure is lower than the atmospheric pressure during inspiration
D. Inspiration occurs when atmospheric pressure is less than intrapulmonary pressure
Releted Question 3

The maximum volume of air a person can breathe in after a forced expiration is known as :

A. Total lung capacity
B. Expiratory capacity
C. Vital capacity
D. Inspiratory capacity
Releted Question 4

Tidal volume and Expiratory reserve volume of an athlete is $$500\,mL$$  and $$1000\,mL$$  respectively. What will be his Expiratory capacity if the residual volume is $$1200\, mL?$$

A. $$1500\,mL$$
B. $$1700\,mL$$
C. $$2200\,mL$$
D. $$2700\,mL$$

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Breathing and Exchange of Gases


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