Bronchi, Lungs, Pleura and Diaphragm Flashcards Preview

LSS 1 - Thorax Anatomy - Laz > Bronchi, Lungs, Pleura and Diaphragm > Flashcards

Flashcards in Bronchi, Lungs, Pleura and Diaphragm Deck (24)
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1

What vertebral level does the trachea start and end at?

C6 to T4/T5

2


What is the name of the hooked cartilage at the bottom of the trachea?

Carina

3


What are the three divisions of the bronchi?

Primary - Lobar – Segmental

4


What are the cartilaginous structures found at the top of the airway?

Thyroid Cartilage
Cricoid Cartilage

5

What is the clinical significance of the gap between these two structures?


In an emergency situation, a cricothyroidotomy can be performed by piercing a hole in the median cricothyroid ligament.

6

How are the two primary bronchi different?

The right bronchus has a larger diameter and is more vertical

7

How many bronchopulmonary segments are there per lung?

10

8


What do the vessels, nerves and bronchi from the mediastinum have to pass through to get to the lungs?


Root of the lung

9

Where is the apex of the lung?





3-4 cm above the level of the first costal cartilage

10

What are the three edges of the lung?

Anterior, Posterior, Inferior

11

What are the three surfaces of the lung?

Costal, Mediastinal, Diaphragmatic

12

What does the diaphragm separate?


Right lung from the right lobe of the liver
Left lung from the left lobe of the liver, the stomach and the spleen

13

What is found above and behind the cardiac impression on the mediastinal surface of the lung?

The hilum of the lung where the vessels, bronchi and nerves enter the lung from the mediastinum

14

Describe the arrangement of the vessels and bronchi in the hilum of the lung.

The pulmonary artery is superior to the pulmonary veins. Bronchus is generally superior. The left bronchus divides into lobar bronchi within the lung. The right bronchus may divide into lobar bronchi in the hilum (before entering the lung).

15


Name the lobes in the right and left lung.

Right = superior, middle and inferior
Left = superior, inferior

16

Name the fissures separating the lobes.



Right:
Superior from Middle = horizontal
Middle from Inferior = oblique
Left:
Superior from Inferior = oblique

17

What structures enter of leave the hilum of the lung?


Pulmonary artery, pulmonary veins, bronchus, pulmonary nerve plexus, lymph vessels and nodes

18

What is the pulmonary ligament?


Inferior fold of pleura (below the hilum)

19

Where do the visceral and parietal pleura become continuous?

At the hilum of the lungs

20

What is the gap between the inferior surface of the lung and the inferior surface of the pleura called?


Costo-diaphragmatic recess

21

What are the attachments of the diaphragm?


Costal margin
Xiphoid process
Ends of ribs 11 and 12
Lumbar vertebrae

22

How do the dimensions of the thoracic cavity change when inspiring?


Anteroposterior diameter increases
Transverse diameter increases

23

What causes expiration?

Expiration is PASSIVE - it is caused by the natural recoil of the lungs

24


What happens in forced expiration?

The abdominal muscle contracts pushing the abdominal viscera against the diaphragm and pulling the costal margin down.