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Flashcards in Respiratory Test Deck (44)
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1
Q

What are the four main processes of respiration?

A

Pulmonary ventilation, external respiration, transport of respiratory gasses, and internal respiration

2
Q

What is internal respiration?

A

The exchange of oxygen and CO2 between body cells and blood in the capillaries

3
Q

What is the exchange of oxygen and CO2 between body cells and blood in the capillaries called?

A

Internal respiration

4
Q

What is the transport of respiratory gases?

A

When blood transports CO2 to the lungs and oxygen to the body’s cells

5
Q

What is pulmonary ventilation?

A

Inspiration and expiration in response to changes in oxygen and carbon dioxide in the body

6
Q

What is it called when blood transports CO2 to the lungs and oxygen to the body’s cells?

A

Transport of respiratory gases

7
Q

What is inspiration and expiration in response to changes in oxygen and carbon dioxide in the body called?

A

Pulmonary ventilation

8
Q

What is external ventilation?

A

The exchange of oxygen and CO2 between alveoli/blood in the pulmonary capillaries

9
Q

What is the exchange of oxygen and CO2 between alveoli/blood in the pulmonary capillaries called?

A

External respiration

10
Q

What does boyle’s law state?

A

That volume changes lead to pressure changes which then lead to the flow of gasses

11
Q

What law states that volume changes lead to pressure changes which then lead to the flow of gasses?

A

Boyle’s law

12
Q

Describe inspiration

A

The diaphragm moves inferiorly, intercostal muscles lift the ribcage, and pressure decreases

13
Q

What is inspiration?

A

Inhalation

14
Q

What do intercostal muscles do?

A

They lift the ribcage during inspiration

15
Q

When is there lower pressure in the lungs?

A

During inspiration

16
Q

What does the diaphragm do during inspiration?

A

It moves inferiorly

17
Q

What is expiration?

A

Exhalation

18
Q

Describe expiration

A

It normally depends on lung elasticity, not muscle contraction

19
Q

What depends on lung elasticity?

A

Expiration

20
Q

Is breathing a positive or negative pressure system?

A

It’s a negative pressure ventilation system

21
Q

What do the pleurae in general do?

A

They keep the lungs from separating or sticking

22
Q

What is airway resistance?

A

It’s the friction versus the cross sectional area

23
Q

What does alveolar surface tension do?

A

It tries to decrease alveolar size

24
Q

What prohibits lung collapse?

A

Surfactant

25
Q

What does surfactant do?

A

It prohibits lung collapse

26
Q

What is lung compliance?

A

The stretchiness of lungs

27
Q

What does the stretchiness of the lungs include?

A

Defensibility and alveolar surface tension

28
Q

What measures the stretchiness of the lungs?

A

Lung compliance

29
Q

How does oxygen bind with red blood cells?

A

Oxygen binds with the heme’s iron in red blood cells

30
Q

What does oxygen bind with?

A

It binds with the heme’s iron in red blood cells

31
Q

What is the plurae?

A

The surface of the lungs and diaphragm

32
Q

How does the plurae help the lungs inflate?

A

The muscles pull on the visceral plurae, which then pulls on the fluid and on the parietal plurae.

33
Q

What does the plurae do?

A

It inflates the lungs by reestablishing a vacuum

34
Q

What is the average vital capacity?

A

4800ml

35
Q

What is the average lung capacity?

A

5,500

36
Q

What is the average tidal volume?

A

500

37
Q

What does an increased temperature do?

A

It decreases the affinity for oxygen

38
Q

What does a decreased pH do?

A

It decreases the affinity for oxygen

39
Q

What does a decreased temperature do?

A

It increases the affinity for oxygen

40
Q

What does an increased pH do?

A

It increases 02 affinity

41
Q

Is temperature directly or inversely proportional to oxygen affinity?

A

Inversely

42
Q

Is pH directly or inversely proportional to oxygen affinity?

A

Directly

43
Q

Is CO2 partial pressure directly or inversely proportional to oxygen affinity?

A

Inversely

44
Q

Is BPG directly or inversely proportional to oxygen affinity?

A

Inversely