cardio-respiratory and vascular systems: lung volumes

Question 1

define tidal volume

Answer 1

the volume of air being breathed in or out per breath

Question 2

define vital capacity

Answer 2

the measure of maximum inspiration to maximum expiration

Question 3

define the inspiritory reserve volume (IRV)

Answer 3

the volume of air that can be inspired beyond tidal volume

Question 4

define expiratory reserve volume (ERV)

Answer 4

the volume of air that can be breathed out beyond tidal volume

Question 5

label a spirometry graph

Answer 5

Question 6

how to find out minute ventillation

Answer 6

tidal volume x breathing rate

Question 7

how to find breathing rate from spirometry

Answer 7

number of peaks in tidal volume

Question 8

what happens when tidal volume increases

Answer 8

as tidal volume increases, the amount left over in reserve to breathe in or out decreases, but overall vital capacity stays the same

Question 9

avergae tidal volume at rest

Answer 9

500ml

Question 10

average vital capacity at rest

Answer 10

stays the same

Question 11

what happens to tidal volume during exercise

Answer 11

increases

Question 12

what hapens to vital capacity during exercise

Answer 12

stays the same

Question 13

average breathing frequency at rest

Answer 13

15 breaths per minute

Question 14

what happens to breathing frequency during exercise

Answer 14

increases

Question 15

average minute ventillation at rest

Answer 15

6-7 l/min

Question 16

what happens to minute ventillation during exercise

Answer 16

increases

Question 17

average inspiratory reserve volume at rest

Answer 17

3.1 litres

Question 18

what happens to inspiratory reserve volumes during exercise

Answer 18

decreases

Question 19

average expiratory reserve volume at rest

Answer 19

1.2 litres

Question 20

what happens to expiratory reserve volume during exercise

Answer 20

decreases