Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Physiology > Physiology Quiz 6 (Resipratory) > Flashcards

Physiology Quiz 6 (Resipratory) Flashcards

0
Q

Intrapleural pressure

A

Pressure within thoracic cavity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
1
Q

Interpulmonic pressure

A

Pressure within lungs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Intraplural pressure is always….

A

Negative

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Contraction of diaphragm does what

A

Increase pressure in thoracic cavity and lungs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Tidal volume

A

Volume of air inhaled and exhaled

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Typical value of tidal volume

A

500mL; will increase with exercise

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Dead space

A

Regions not involved in gas exchange

When Vidal volume is taken in a portion of the air goes to dead space

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Types of dead space

A

Anatomic

Physiologic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Anatomic dead space

A

Volume of respiratory tree that does not normally participate in gas exchange which is supplied with air from tidal volume

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Typical volume of anatomic dead space

A

150ml

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Physiologic dead space

A

Volume in the lung which normally participates in gas exchange that is supplied with air but is not now participating in gas exchange

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

How does physiological dead space occur

A

Small bronchiole closes off (usually by mucous plug) and area distal to that blockage no longer participates in gas exchange

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Sigh reflex

A

Deeper than normal tidal breath, counters atelectasis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Atelectasis

A

Something causing small bronchiole to become closed off

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What counters atelectasis

A

Sigh reflex

Exercise with hyperpnea

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What diseases are associated with atelectasis

A

COPD

emphysema

16
Q

Inspiratory reserve volume

A

Maximal volume that can be inhaled at he end of a normal tidal volume

17
Q

Inspiratory reserve volume decreased in what populations

A

COPD
Smokers
Emphysema
Asthma

18
Q

Expiratory reserve volume

A

Maximal amount of air that can be exhaled at the end of normal tidal volume

19
Q

Expiratory tidal volume decreased in what populations

A

COPD
smokers
Asthma

20
Q

What is a more sensitive indicator of pulmonary dysfunction

A

Expiratory reserve volume

21
Q

What happens to the bronchiole with asthma

A

Constricte; inhibits air flow

22
Q

What does respiratory bronchiole do

A

Collapses in forced expiration to not allow air to leave alveolar clusters; happens sooner in emphysema and COPD

23
Q

Eupnea

A

Quiet breathing at rest

24
Q

Hyperpnea

A

Increased rate and depth of breathing

25
Q

Vital capacity

A

Sum of
Inspiratory reserve volume
Expiratory reserve volume
tidal volume

26
Q

Vital capacity is reduced in what populations

A

COPD

smokers

27
Q

Residual volume

A

Volume of air that can never be expelled

28
Q

Residual volume is larger in what populations

A

COPD

smokers

29
Q

Forced exploratory volume

A

Volume that can be expelled
FEV 1
FEV 2

30
Q

FEV 1

A

Volume of air that can be expelled during first second (~70% vital capacity)

31
Q

FEV 2

A

Volume of air that can be expelled during the first 3 sec (~90% vital capacity)

32
Q

Forced expiratory volume is reduced in what populations

A

COPD
asthma
Smokers

Physiology (17 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions