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Flashcards in LAB respiration Deck (30)
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1
Q

spirometer

A

an instrument used to measure respiratory volumes

2
Q

tidal volume

A

unforced volume of air inhaled or exhaled during resting conditions

3
Q

Average tidal volume

A

500 ml

4
Q

inspiratory reserve volume (IRV) following a tidal inhale

A

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

5
Q

The average inspiratory reserve volume is

A

3100 ml

6
Q

expiratory reserve volume (ERV) following a tidal exhale

A

The volume of air that can be forcefully exhaled

7
Q

The average expiratory reserve volume is

A

1200 ml

8
Q

the residual volume (RV)

A

volume that remains in the lungs following a forceful exhalation.

9
Q

average residual reserve is

A

1200 ml

10
Q

IRV and ERV and RV can all change with exrecise

A

true

11
Q

inspiratory capacity

A

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

12
Q

Inspiratory capacity is the sum of IRV and the TV

A

IRV and the TV average of 3600 ml

13
Q

functional residual capcity

A

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

14
Q

functional residual capacity is equal to

A

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

15
Q

RV doesn’t change with activity but may

A

increase with age as lung elasticity increases

16
Q

Vital Capacity or VC

A

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

17
Q

Vital Capacity is the sum of the

A

VC = TV + IRV + ERV

18
Q

Average Vital Capacity or VC

A

4800 ml

19
Q

Total Lung Capacity or TLC

A

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

20
Q

Minute Respiratory Volume MRV

A

The amount of air exchanged with the environment in one minute

21
Q

MRV =

A

MRV = TV x breaths/min

22
Q

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

A

tidal volume, vital capacity, and expiratory reserve volume

23
Q

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

A

decrease, decrease

24
Q

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

A

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

25
Q

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

A

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

26
Q

after exercise respiratory rate goes up, why?

A

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

27
Q

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

A

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

28
Q

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

A

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

29
Q

what happens to respiratory rate after exercise

A

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

30
Q

what happens after big breaths in and out.

A

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