2.02 - Respiration - Muscles & Pressure Flashcards Preview

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Flashcards in 2.02 - Respiration - Muscles & Pressure Deck (189)
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1

What is the Plural Linkage?

Two layers of tissues that encompass lungs

2

What does the Pleura connect to?

(2)

Ribs

Diphragm

3

The diaphragm pulls ______ slightly when it contracts.

Forward

4

What is the Phrenic Nerve formed by?

Nerves C3-C5

5

The right Phrenic Nerve goes __________.

In front of the lungs

6

The Left Phrenic Nerve goes ___________.

Behind the heart

7

Why does the Phrenic nerve have two distinct pathways?

To assure that the diaphragm works even when there is a spinal injury that prevents the ribs from working

8

What holds the two pleural layers together?  What does this do?

Surfacant

It connects the layers yet allows the layers to move freely without friction

9

What are the two forces the balance lung pressure?

The force on the pulmonary apparatus to collapse

The force of the chest wall to expand

10

What is the Visceral Pleura?

The pleura that encases the lungs

11

What is the Parietal Pleura?

The pleura that lines the inner aspect of the rib cage

12

What is the Pulmonary Space?  What sort of pressure does it use?

The narrow, fluid lined space linking the visceral & parietal pleurae

The linkage is held by negative pressure and reduced surface tension

13

What is Pleural Coupling?

How the pleuras are held together via negative pressure and surface tension

14

What does REL stand for?

Resting Expiratory Level

15

What is REL?

(2)

Resting Expiratory Level

When the recoil forces of the lung tissues are equivalent to the recoil forces of the rib cage

16

What is Alveolar Pressure?

The pressure INSIDE the lungs

17

Alveolar Pressure is relative to ___________.

Atmospheric Pressure

18

How do you abbreviate Alveolar Pressure?

Palv

19

What is Pleural Pressure?

The Pressure between the two plurae

20

Where is Pleural Pressure located?

In the pulmonary space

21

How do you abreviate Pleural Pressure?

Ppl

22

What is Abdominal Pressure?

The pressure within the abdomen

23

How do you abbreviate Abdominal Pressure?

Pabd

24

What happens when there is extra air between the pleura?

It prevents the lungs from expanding

25

Substances strive to achieve ______.

Equalibrium

26

What do we call the law that states that substances move from areas of high pressure to areas of low pressure?

Boyle's Law

27

At a given ______, Pressure & Volume are _________.

Temperature

Inversely related

28

When the rib cage lowers, Palv ______.

Increases

(Alveolar Pressure)

29

When the diaphragm lowers, Valv _______.

Increases

(Alveolar Volume)

30

When the diaphragm lowers, Palv _______.

Decreases

(Alveolar Pressure)