MEDIUM
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Explain the process of inspiration and expiration with diagrams.

Important Questions on Respiration and Circulation

EASY
A person suddenly starts coughing while swallowing food. This coughing would have been due to improper movement of
MEDIUM
Write the steps of expiration steps in human being.
EASY
Which of the following is not the function of conducting part of respiratory system?
MEDIUM
Draw a labelled diagram of the mechanism of inspiration and expiration.
MEDIUM
The atmospheric pressure is 760 mm Hg at the sea level. Which of the following ranges is nearest to the partial pressure of CO2 in mm Hg?
EASY

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

 

MEDIUM
Explain the mechanism of inspiration and expiration.
MEDIUM
Inspiratory reserve volume (IRV) is normally between _____.
EASY
Which is the correct sequence of the air passage in man?
MEDIUM

Assertion (A): Biconcave shape of mammalian RBC facilitates gas exchange.

Reason (R): Biconcave shape provides a high surface to volume ratio.

EASY
After forceful inspiration, the amount of air that can be breathed out with maximum forced expiration is equal to
EASY

Select the correct events that occur during inspiration.

(a) Contraction of diaphragm
(b) Contraction of external intercostal muscles
(c) Pulmonary volume decreases
(d) Intrapulmonary pressure increases

HARD
When does the increase in the volume of thoracic chamber take place in the dorsoventral axis? 
EASY
The process in which atmospheric air with 21% of O2 is drawn in and alveolar air rich in CO2 is sent out is called        
EASY
If you exhale multiple times into a conical flask containing lime water through a single inlet fixed through a stop cork, lime water will?
MEDIUM

Which one of the following is a possibility for most of us in regard to breathing, by making a conscious effort?

EASY
What is partial pressure? How does it help in gaseous exchange during respiration?
MEDIUM
The figure given below shows a small part of human lung where exchange of gases takes place. In which one of the options given below, the one part A, B, C or D is correctly identified along with its function?

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MEDIUM
In mature mammalian erythrocytes, the respiration is: