7.3

Question 1

Breathing rhythms

Answer 1

number of breaths taken per minute

Question 2

Ventilation rate

Answer 2

total volume of air inhaled in one minute

ventilation rate = tidal volume x breathing rate

oxygen demand increases
tidal volume of air moved in and out increases
breathing rate increases

Question 3

Tidal volume

Answer 3

volume of air that moves into and out of the lungs with each resting breath

Question 4

Vital capacity

Answer 4

volume of air that can be exhaled when the deepest possible intake of breath

Question 5

Inspiratory reserve volume

Answer 5

maximum volume of air you can breathe in over the normal inhalation

Question 6

Expiratory reserve volume

Answer 6

extra amount of air you can force out of your lung over the normal tidal volume

Question 7

Residual volume

Answer 7

volume of air left in lungs when you exhale as hard as possible

Question 8

Total lung capacity

Answer 8

vital capacity + residual volume