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

i - c , ii - a , iii - b , iv - e and v - d

i - c , ii - d , iii - b , iv - a and v - e

i - c , ii - a , iii - d , iv - e and v - b

i - e , ii - d , iii - b , iv - a and v - c

EASY

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The volume of air involved in breathing movements can be estimated by using a which helps in clinical assessment of pulmonary functions.

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Important Questions on Respiration and Circulation

MEDIUM

Biology>Physiology>Respiration and Circulation>Mechanism of Breathing

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?

EASY

Biology>Physiology>Respiration and Circulation>Mechanism of Breathing

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

EASY

Biology>Physiology>Respiration and Circulation>Mechanism of Breathing

Lungs are made up of air-filled sacs the alveoli. They do not collapse even after forceful expiration, because of:

MEDIUM

Biology>Physiology>Respiration and Circulation>Mechanism of Breathing

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

MEDIUM

Biology>Physiology>Respiration and Circulation>Mechanism of Breathing

Write the steps of expiration steps in human being.

EASY

Biology>Physiology>Respiration and Circulation>Mechanism of Breathing

The amount of air that is left behind in lungs after expiratory reserve volume has been exhaled is

EASY

Biology>Physiology>Respiration and Circulation>Mechanism of Breathing

Lungs does not collapse between breaths and some amount of air will always remain in the lungs which can never be expelled because,

HARD

Biology>Physiology>Respiration and Circulation>Mechanism of Breathing

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-

MEDIUM

Biology>Physiology>Respiration and Circulation>Mechanism of Breathing

Inspiratory reserve volume (IRV) is normally between _____.

MEDIUM

Biology>Physiology>Respiration and Circulation>Mechanism of Breathing

Draw a labelled diagram of the mechanism of inspiration and expiration.

MEDIUM

Biology>Physiology>Respiration and Circulation>Mechanism of Breathing

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 ?

EASY

Biology>Physiology>Respiration and Circulation>Mechanism of Breathing

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

EASY

Biology>Physiology>Respiration and Circulation>Mechanism of Breathing

Vital capacity of lung is ______ .

EASY

Biology>Physiology>Respiration and Circulation>Mechanism of Breathing

The Total Lung Capacity

(TLC)

is the total volume of air accomodated in the lungs at the end of a forced inspiration. This includes:

MEDIUM

Biology>Physiology>Respiration and Circulation>Mechanism of Breathing

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