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Residual air mostly occurs in

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Important Questions on Breathing and Respiration

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Biology>Human Physiology>Breathing and Respiration>Respiratory Volumes
Vital capacity of lung is ______ .
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Biology>Human Physiology>Breathing and Respiration>Respiratory Volumes
The Total Lung Capacity(TLC) is the total volume of air accomodated in the lungs at the end of a forced inspiration. This includes:
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Biology>Human Physiology>Breathing and Respiration>Respiratory Volumes
Given that tidal volume is 600 ml, inspiratory reserve volume is 2500 ml, and expiratory reserve volume is 800 ml, what is the value of vital capacity of lung ?
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Biology>Human Physiology>Breathing and Respiration>Respiratory Volumes
Lungs does not collapse between breaths and some amount of air will always remain in the lungs which can never be expelled because,
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Biology>Human Physiology>Breathing and Respiration>Respiratory Volumes
Match the items given in Column I with those in Column II and select the correct option given below:
 
  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
MEDIUM
Biology>Human Physiology>Breathing and Respiration>Respiratory Volumes
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?
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Biology>Human Physiology>Breathing and Respiration>Respiratory Volumes
The amount of air that is left behind in lungs after expiratory reserve volume has been exhaled is
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Biology>Human Physiology>Breathing and Respiration>Respiratory Volumes

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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Biology>Human Physiology>Breathing and Respiration>Respiratory Volumes
Lungs are made up of air-filled sacs the alveoli. They do not collapse even after forceful expiration, because of:
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Biology>Human Physiology>Breathing and Respiration>Respiratory Volumes
After forceful inspiration, the amount of air that can be breathed out with maximum forced expiration is equal to
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Biology>Human Physiology>Breathing and Respiration>Respiratory Volumes
Match the following related to respiratory volumes and capacities.
Column I Column II
i Tidal volume a 2500 to 3000 ml of air
ii Inspiratory reserve volume b 1000 ml of air
iii Expiratory reserve volume c 500 ml of air
iv Residual volume d 3400 to 4800 ml of air
v Vital capacity e 1200 ml of air
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Biology>Human Physiology>Breathing and Respiration>Respiratory Volumes

An adult mammal with 50 kg body weight has the following functional parameters of its lungs. Inspiratory reserve volume =40 ml/kg body weight; Expiratory reserve volume =15 ml/kg body weight; Vital capacity =60 ml/kg body weight; Breathing rate =20/min.

The volume (in litre) of air that its lungs displace in 24 hours is-

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Biology>Human Physiology>Breathing and Respiration>Respiratory Volumes
The inspiratory reserve volume + tidal volume + expiratory reserve volume is the same
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Biology>Human Physiology>Breathing and Respiration>Respiratory Volumes
All of the following options are correct except:

i. TLC = VC + RV

ii. VC = ERC + IRV

iii. VC = IRC + ERV

iv. RV = TLC - ERV + TV + IRV
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Biology>Human Physiology>Breathing and Respiration>Respiratory Volumes
Match column I with II and select the correct option from the given codes.
  I   II
(a) Tidal volume (i) 2500-3000 mL of air
(b) Inspiratory reserve volume (ii) 1000 mL of air
(c) Expiratory reserve volume (iii) 500 ml of air
(d) Residual volume (iv) 3400-4800 mL of air
(e) Vital capacity (v) 1200 mL of air
MEDIUM
Biology>Human Physiology>Breathing and Respiration>Respiratory Volumes
Listed below are four respiratory capacities (i-iv) and four jumbled respiratory volumes of a normal human adult.
 
Respiratory volumes
and capacities		 Volume of air
(i) Residual volume 2500 mL
(ii) Vital capacity 4000 mL
(iii) Inspiratory reserve volume 1200 mL
(iv) Inspiratory capacity 4500 mL

Which one of the following is the correct matching of two capacities and volumes?
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Biology>Human Physiology>Breathing and Respiration>Respiratory Volumes
(i) Mammals have negative pressure breathing.
(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?
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Biology>Human Physiology>Breathing and Respiration>Respiratory Volumes
Consider the following statements each with two blanks.
(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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Biology>Human Physiology>Breathing and Respiration>Respiratory Volumes
Find out the false option.
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Biology>Human Physiology>Breathing and Respiration>Respiratory Volumes
Select the correct option regarding respiratory volumes.