Respiratory System Flashcards Preview

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Flashcards in Respiratory System Deck (34):
1

What are the three muscles in the intercostal region?

Internal Intercostal muscles
External Intercostal muscles
Innermost Muscles

2

What are the three intercostal muscles innervated by?

Intercostal nerves

3

Where do the intercostal muscles receive their blood supply from?

Internal thoracic (Anterior)
Descending aorta (Posterior)

4

What are the two functions of the pleural membrane?

Slide
Suction

5

What happens if you break the seal in the pleural membranes?

Pneumothorax (Collapsed Lung)

6

What are the 4 regions of the parietal pleura?

Cervical
Costal
Diaphragmatic
Mediastinal

7

When you exhale what does the diaphragm do?

It relaxes and moves up decreasing lung volume

8

When you inhale what does the diaphragm do?

It contracts and pulls down increasing lung volume

9

Which of the pleural membranes has pain receptors?

Parietal

10

Which nerve in the respiratory system refers pain?

Phrenic Nerve

11

How many lobes does the left lung have?

2

12

What is the name of the fissure in the left lung?

Oblique Fissure

13

Which primary bronchi is shorter and steeper?

Right

14

How many primary bronchi are there?

2 (Same Number as number of lungs)

15

How many secondary bronchi are there in the right lung?

Three (same # as # of lobes)

16

How many secondary bronchi are in the left lung?

Two (same # as # of lobes)

17

Which lung is more likely to get aspirated objects lodged into it?

Right

18

Where do the bronchi lack cartilage?

Terminal Bronchi

19

Where is the site of gas exchange?

Alveolar sacs

20

Do the pulmonary arteries have oxygenated or deoxygenated blood?

Deoxygenated blood

21

Where does the CO2 and O2 exchange in the lungs?

Pulmonary capillaries

22

What law determines the mechanics of breathing?

Boyle's Law

23

What is Boyles Law?

Pressure varies Inversely with Volume

24

If volume increases, pressure is _____?

Decreased

25

What is the primary muscle of respiration?

Diaphragm

26

What three things pass through the diaphragm?

Inferior Vena Cava
Descending Aorta
Esophagus

27

What nerve innervates the diaphragm?

Phrenic Nerve

28

What is the function of the diaphragm?

To increase the volume of the lungs

29

Does the lung actively pull air in and push air out?

NO

30

How does air flow into the lung?

The diaphragm contracts creating more volume in the lungs allowing air to flow in passively.

31

What are the accessory muscles of respiration?

Intercostals
Serratus Anterior
Scalenes
Sternocleidomastoid

32

If there is chest pain from an inflamed pleural membrane what nerve is responsible?

Intercostal nerves

33

What regions of the pleural membrane do the intercostal nerves innervate?

Cervical and Costal

34

What regions of the pleural membrane does the phrenic nerve innervate?

Mediastinal and Diaphragmatic