Lung Volumes

Question 1

What is the movement of air into the lungs called?

Answer 1

Inspiration

Question 2

What is the movement of air out of the lungs called?

Answer 2

Expiration

Question 3

What is the tidal volume?

Answer 3

Volume of air inspired or expired per breath

Question 4

How do you calculate minute ventilation?

Answer 4

Number of breaths (per min) x tidal volume

Question 5

What is the approximate tidal volume at rest?

Answer 5

0.5 litres

Question 6

What is the formula to calculate minute ventilation at rest?

Answer 6

12 breaths/min x 0.5 litres = 6 litres/min

Question 7

What is inspiratory reserve volume (IRV)?

Answer 7

Volume of air that can be forcibly inspired after a normal breath

Question 8

What is expiratory reserve volume (ERV)?

Answer 8

Volume of air that can be forcibly expired after a normal breath

Question 9

What happens to tidal volume during exercise?

Answer 9

It increases

Question 10

What is residual volume?

Answer 10

The amount of air that remains in the lungs after maximal expiration

Question 11

What is the effect of exercise on residual volume?

Answer 11

Remains the same

Question 12

What is the effect of exercise on minute ventilation?

Answer 12

Big increase

Question 13

Fill in the blank: The volume of air breathed in or out per minute is referred to as _______.

Answer 13

minute ventilation

Question 14

True or False: The expiratory reserve volume decreases during exercise.

Answer 14

False

Question 15

List the different parts of total lung volume that can change during exercise.

Answer 15

• Tidal volume
• Inspiratory reserve volume
• Expiratory reserve volume
• Minute ventilation

Question 16

What is a key study hint regarding exams?

Answer 16

Do not use abbreviations in the exam

Question 17

What remains constant in terms of lung volume during exercise?

Answer 17

Residual volume

Question 18

What happens to the depth of breathing during exercise?

Answer 18

Increases

Question 19

What is the purpose of the lungs’ structure, such as cartilage rings?

Answer 19

To keep the alveoli, bronchi, and trachea open permanently

Question 20

What is the volume of air breathed in or out per breath called?

Answer 20

Tidal volume

Question 21

Explain how you can determine your inspiratory reserve volume.

Answer 21

Take a normal breath in and then take an additional breath in until your lungs feel full

Question 22

Explain how you can determine your expiratory reserve volume.

Answer 22

Breathe out normally and then breathe out further as much as you can