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Earn 100

Residual air mostly occurs in
(a)alveoli
(b)bronchus
(c)nostrils
(d)trachea

50% studentsanswered this correctly
Important Questions on Breathing and Respiration
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Column – I | Column – II | ||
a. | Tidal volume | i. | 2500 – 3000 mL |
b. | Inspiratory Reserve volume | ii. | 1100 – 1200 mL |
c. | Expiratory Reserve volume | iii, | 500 – 550 mL |
d. | Residual volume | iv. | 1000 – 1100 mL |

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Match the following respiratory capacities and respiratory volumes of a normal human adult?
Respiratory capacities | Respiratory volumes | ||
i) | Residual volume | a) | 2800 mL |
ii) | Vital capacity | b) | 3000 mL |
iii) | Inspiratory reserve volume | c) | 1100 mL |
iv) | Inspiratory capacity | d) | 4000 mL |

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Column I | Column II | ||
Tidal volume | to of air | ||
Inspiratory reserve volume | of air | ||
Expiratory reserve volume | of air | ||
Residual volume | to of air | ||
Vital capacity | of air |

HARD
An adult mammal with body weight has the following functional parameters of its lungs. Inspiratory reserve volume body weight; Expiratory reserve volume body weight; Vital capacity body weight; Breathing rate .
The volume (in litre) of air that its lungs displace in hours is-

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i. TLC = VC + RV
ii. VC = ERC + IRV
iii. VC = IRC + ERV
iv. RV = TLC - ERV + TV + IRV

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I | II | ||
---|---|---|---|
Tidal volume | of air | ||
Inspiratory reserve volume | of air | ||
Expiratory reserve volume | of air | ||
Residual volume | of air | ||
Vital capacity | of air |

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Respiratory volumes and capacities |
Volume of air | |
---|---|---|
(i) | Residual volume | |
(ii) | Vital capacity | |
(iii) | Inspiratory reserve volume | |
(iv) | Inspiratory capacity |
Which one of the following is the correct matching of two capacities and volumes?

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(ii) The impulses for voluntary breathing are sent by the medulla oblongata.
(iii) The trachea, primary, secondary and tertiary bronchi, and initial bronchioles are supported by incomplete cartilaginous rings.
(iv) The volume of air remaining in the lungs even after a forcible expiration is functional residual capacity.
How many of the above statements are correct?

HARD
(i) Actually, only about ___(1)____ mL of air enters the lung alveoli for the exchange of gases. The remaining fills the respiratory passage and is termed ___(2)____.
(ii) The amount of air which one can inhale with maximum effort and also exhale with maximum effort is termed as ___(3)____. It is about ___(4)____ in normal adult person.
(iii) During normal quiet breathing, on an average, approximately ___(5)____ mL of air is inspired or expired by adult human male in each breath. It is termed as ___(6)____ volume.
Which of the following options gives the correct fill ups for the respective blank numbers from (1) to (6) in the above statements?

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