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Flashcards in Respiratory Anatomy Deck (67)
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1

Respiratory diverticulum came from what embryological origin?

Upper end of foregut

2

From the respiratory diverticulum what develops?

2 lung buds

3

Lung buds become what for each lung?

primary bronchi

4

Primary--> secondary --> tertiary bronchi --> terminal bronchioles --> respiratory bronchioles and what develops here in the 3rd trimester?

Alveoli

5

What is esophageal atresia?

Upper end of the esophagus is blind-ending

6

What is tracheo-esophageal fistula?

Lower end is connected to the lower end of the trachea

7

Where does the trachea begin?

Cricoid cartilage, C6

8

The trachea is lined by what type of cell?

Pseudo-stratified ciliated columnar epithelium

9

How is the trachea held open?

15-20 U-shaped rings

10

The tracheal rings are connected posteriorly by?

Trachealis muscle

11

How long and wide is the trachea?

5", 1"

12

Where does the trachea end?

Sternal angle (of Louis) T4/5

13

What does the trachea become?

R/L bronchi

14

The V shaped cartilage marking the bifurcation of the trachea is called the?

Carina

15

What structure lies behind the trachea?

Esophagus

16

The 2-4th tracheal rings are crossed anteriorly by what?

Isthmus of the thyroid gland

17

T/F The left bronchus is shorter, wider, more vertical than the right

F the Right bronchus is shorter, wider, more vertical than the left

18

where do aspirated foreign bodies likely to end up?

Middle lobe of R primary bronchus

19

How many secondary bronchi do the right and left main divide into?

R - 3
L - 2

20

The lobar bronchus divides into what which feeds what type of segment?

segmental bronchi
terminal bronchiole

21

Terminal bronchioles lead to what type of bronchiole which contain?

respiratory bronchioles
Alveolar sacs

22

T/F the right lung is bigger, wider and shorter than the L

T

23

Each bronchopulmonary segment is _________ in shape and the apex is directed to the _____

pyramidal
hilum

24

The 10 segments of the R lung and which lobe they are in?

Upper - apical, post, ant
Middle - lat/med
Lower - sup, lat, ant med, posterior basal

25

The 8/9 segments of the L lung and which lobe they are in?

Upper - apicoposterior, ant, sup, inferior lingual
Lower - sup, ant, lat, posterior basal

26

The segmental arteries of the lungs are derived from?

Bronchial branches of the aorta

27

In the root of the lungs, the bronchus lies _____ and the veins lie _____

Behind
Below

28

The pulmonary artery lies in the?

Right lung root anterior to the bronchus

29

The Left pulmonary A lies _____ to the bronchus

Superior

30

The outer/parietal layer or lung pleura is continuous at the ____ ___ ____ ____ and lies against the inner aspect of the ____ ____?

Root of the lung
Thoracic cage