Hutchinson: Respiratory System Flashcards Preview

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Flashcards in Hutchinson: Respiratory System Deck (20):
1

What are the 4 different sections of parietal pleura?

1. cervical parietal pleura2. costal parietal pleura3. diaphragmatic parietal pleura4. mediastinal parietal pleura

2

What does serous fluid do?

Allows sliding and keeps the layers attached to each other.

3

What is another name for hilum of the lung?

Root of the lung

4

What is the costodiaphragmatic recess?

Where the where the pleura and diaphragm meet.

5

What type of innervation does the parietal pleura have?

Somatic innervation. This means that the pain would be referred to the dermatome in the same area.

6

The phrenic nerve is different in function than other somatic nerve... how?

It is the only somatic nerve that refers pain.

7

Visceral pleura has what type of pain sensation/ innervation?

There are only stretch receptors there. The viscera closer to the heart sends the signal to thorax region via sympathetic pathways, and viscera along the costal area sends the signal to the brainstem via the parasympathetic pathway.

8

What is the lingula of the lung and where is it located?

It means little tongue and it is located in the left lung just above the oblique fissure near the inferior portion of the lung.

9

Which primary bronchi is more vertical in position?

right

10

Which primary bronchi is shorter than the other?

right

11

How many primary and secondary bronchi are there?

2 primary (one for each lung) and 5 secondary (one for each lobe)

12

What nerve innervates the lungs?

T1 or so, basically sympathetic innervation will cause bronchodilation

13

What hormone causes bronchodilation in the lungs?

epinephrine

14

What nerve is associated with parasympathetic stimulation of the lungs?

CN X that causes broncho constriction

15

Where does cartilage stop in the lung pathways?

terminal bronchioles?

16

What is present in terminal bronchioles that is absent above it?

smooth muscle tissue that can constrict the airways

17

What 3 things pass through the diaphragm?

Esophagus, IVC and aorta

18

What nerves innervate the diaphragm?

C3, C4, C5 keep the diaphragm alive via the phrenic nerve.

19

How to accessory thoracic muscles help with breathing?

They increase volume of thoracic cavity, helping with inhalation.

20

Does the lung actively pull air in?

No, lung is always passive. What is active is the diaphragm increasing the volume of the thoracic cavity.