lung capacities

Question 1

what is tidal volume defined as

Answer 1

volume inspired or expired with each breath

Question 2

what is the tidal volume in men

Answer 2

500ml

Question 3

what is the tidal volume in woman

Answer 3

350ml

Question 4

what is inspiratory reserve volume defined as

Answer 4

maximum volume of air that can be inspired at the end of a NORMAL tidal inspiration

Question 5

what is the normal inspiratory reserve volume

Answer 5

2-3L

Question 6

what is the inspiratory capacity

Answer 6

tidal volume + inspiratory reserve volume

Question 7

what is expiratory reserve volume defined as

Answer 7

maximum volume of air that can be expired at the end of a NORMAL tidal expiration

Question 8

what is the normal expiratory reserve volume

Answer 8

750ml

Question 9

what is residual volume defined as

Answer 9

the volume of air remaining after MAXIMAL expiration

Question 10

what is a normal residual volume

Answer 10

1.2L

Question 11

what causes residual volume to increase

Answer 11

loss of elastic recoil:
. old age
. emphysema

Question 12

what capacities CANT be measured by spirometry

Answer 12

residual volume

total lung capacity

Question 13

what is vital capacity defined as

Answer 13

maximum volume of air that can be expired after a maximal inspiration

Question 14

what is the vital capacity in men

Answer 14

4500ml

Question 15

vital capacity in women

Answer 15

3500ml

Question 16

what causes vital capacity to decrease

Answer 16

old age

Question 17

what is total lung capacity defined as

Answer 17

vital capacity + residual volume