LAB respiration

Question 1

spirometer

Answer 1

an instrument used to measure respiratory volumes

Question 2

tidal volume

Answer 2

unforced volume of air inhaled or exhaled during resting conditions

Question 3

Average tidal volume

Answer 3

500 ml

Question 4

inspiratory reserve volume (IRV) following a tidal inhale

Answer 4

The amount of air that can be inspired forcibly beyond the tidal volume

Question 5

The average inspiratory reserve volume is

Answer 5

3100 ml

Question 6

expiratory reserve volume (ERV) following a tidal exhale

Answer 6

The volume of air that can be forcefully exhaled

Question 7

The average expiratory reserve volume is

Answer 7

1200 ml

Question 8

the residual volume (RV)

Answer 8

volume that remains in the lungs following a forceful exhalation.

Question 9

average residual reserve is

Answer 9

1200 ml

Question 10

IRV and ERV and RV can all change with exrecise

Answer 10

true

Question 11

inspiratory capacity

Answer 11

is the total amount of air that can be inspired after a normal tidal volume expiration, so it is the sum of TV and IRV

Question 12

Inspiratory capacity is the sum of IRV and the TV

Answer 12

IRV and the TV average of 3600 ml

Question 13

functional residual capcity

Answer 13

amount of air that remains in the lungs when you exhale a tidal breath

Question 14

functional residual capacity is equal to

Answer 14

the sum of ERV and RV. an average of 2400 ml

Question 15

RV doesn’t change with activity but may

Answer 15

increase with age as lung elasticity increases

Question 16

Vital Capacity or VC

Answer 16

the maximum amount of air that can be exhaled after a maximal inhalation

Question 17

Vital Capacity is the sum of the

Answer 17

VC = TV + IRV + ERV

Question 18

Average Vital Capacity or VC

Answer 18

4800 ml

Question 19

Total Lung Capacity or TLC

Answer 19

The sum of all of the lung volumes an average of 6000 ml

Question 20

Minute Respiratory Volume MRV

Answer 20

The amount of air exchanged with the environment in one minute

Question 21

MRV =

Answer 21

MRV = TV x breaths/min

Question 22

To compute inspiratory reserve volume (IRV), one would need to know ________.

vital capacity, and expiratory reserve volume
tidal volume and vital capacity
tidal volume, vital capacity, and expiratory reserve volume

Answer 22

tidal volume, vital capacity, and expiratory reserve volume

Question 23

Hyperventilation causes a ________ in the blood concentration of CO2, and thus ________ the rate of respiration.

Answer 23

decrease, decrease

Question 24

What happens to your respiratory rate after breathing into the paper bag?

Answer 24

respiratory rate goes up because of air being breathed that’s high in Co2. Co2 stimulates respiratory rate.

Question 25

Why does respiratory rate go up when breathing into a paper bag?

Answer 25

because breathing in an out that same air, will give you high Co2 and that high co2 will stimulate respiratory rate

Question 26

after exercise respiratory rate goes up, why?

Answer 26

because when your using your muscles and having metabolic rate increase the biproduct is Co2 which increases respiratory rate.

Question 27

What happens your ability to hold your breath after breathing into the paper bag?

Answer 27

You will hold your breath for less time because the paper bag increased your respiratory rate due to the increase in Co2

Question 28

What happens to Breath holding after 4 big breaths in and big breaths out?

Answer 28

you will have less Co2 which will increase your respiratory rate and increase your ability to hold your breath

Question 29

what happens to respiratory rate after exercise

Answer 29

exercise makes ATP. The biproduct of ATP is Co2. Co2 will increase respiratory rate.

Question 30

what happens after big breaths in and out.

Answer 30

lower respiratory rate or Co2 are going down. and we will be able to holdour breath longer.