Respiratory System

Question 1

What are the three muscles in the intercostal region?

Answer 1

Internal Intercostal muscles
External Intercostal muscles
Innermost Muscles

Question 2

What are the three intercostal muscles innervated by?

Answer 2

Intercostal nerves

Question 3

Where do the intercostal muscles receive their blood supply from?

Answer 3

Internal thoracic (Anterior)
Descending aorta (Posterior)

Question 4

What are the two functions of the pleural membrane?

Answer 4

Slide

Suction

Question 5

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

Answer 5

Pneumothorax (Collapsed Lung)

Question 6

What are the 4 regions of the parietal pleura?

Answer 6

Cervical
Costal
Diaphragmatic
Mediastinal

Question 7

When you exhale what does the diaphragm do?

Answer 7

It relaxes and moves up decreasing lung volume

Question 8

When you inhale what does the diaphragm do?

Answer 8

It contracts and pulls down increasing lung volume

Question 9

Which of the pleural membranes has pain receptors?

Answer 9

Parietal

Question 10

Which nerve in the respiratory system refers pain?

Answer 10

Phrenic Nerve

Question 11

How many lobes does the left lung have?

Answer 11

2

Question 12

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

Answer 12

Oblique Fissure

Question 13

Which primary bronchi is shorter and steeper?

Answer 13

Right

Question 14

How many primary bronchi are there?

Answer 14

2 (Same Number as number of lungs)

Question 15

How many secondary bronchi are there in the right lung?

Answer 15

Three (same # as # of lobes)

Question 16

How many secondary bronchi are in the left lung?

Answer 16

Two (same # as # of lobes)

Question 17

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

Answer 17

Right

Question 18

Where do the bronchi lack cartilage?

Answer 18

Terminal Bronchi

Question 19

Where is the site of gas exchange?

Answer 19

Alveolar sacs

Question 20

Do the pulmonary arteries have oxygenated or deoxygenated blood?

Answer 20

Deoxygenated blood

Question 21

Where does the CO2 and O2 exchange in the lungs?

Answer 21

Pulmonary capillaries

Question 22

What law determines the mechanics of breathing?

Answer 22

Boyle’s Law

Question 23

What is Boyles Law?

Answer 23

Pressure varies Inversely with Volume

Question 24

If volume increases, pressure is _____?

Answer 24

Decreased

Question 25

What is the primary muscle of respiration?

Answer 25

Diaphragm

Question 26

What three things pass through the diaphragm?

Answer 26

Inferior Vena Cava Descending Aorta Esophagus

Question 27

What nerve innervates the diaphragm?

Answer 27

Phrenic Nerve

Question 28

What is the function of the diaphragm?

Answer 28

To increase the volume of the lungs

Question 29

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

Answer 29

NO

Question 30

How does air flow into the lung?

Answer 30

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

Question 31

What are the accessory muscles of respiration?

Answer 31

Intercostals Serratus Anterior Scalenes Sternocleidomastoid

Question 32

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

Answer 32

Intercostal nerves

Question 33

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

Answer 33

Cervical and Costal

Question 34

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

Answer 34

Mediastinal and Diaphragmatic