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Anatomy - Thorax and Abdomen > Thoracic Cavity > Flashcards

Flashcards in Thoracic Cavity Deck (39)
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What are the three compartments of the thoracic cavity?

Two lateral compartments - pulmonary cavities
One central compartment - mediastinum

1

What do the lateral compartments contain?

Lungs and pleurae

2

What does the central compartment contain?

Heart, great vessels, trachea, esophagus, thymus, and lymph nodes

3

What are the two membranes of the pleurae?

Visceral and parietal

4

What does the visceral pleurae cover?

Lungs

5

What does the parietal pleurae cover?

Pulmonary cavities

6

What are the four parts of the parietal pleurae?

Costal part, mediastinal part, diaphragmatic part, and the cervical pleurae

7

What is the pleural cavity?

The cavity between the visceral and parietal layer that contains serous fluid to help the layers of pleurae slide smoothly over each other during respiration

8

What are the three parts of the lungs?

Apex, three surfaces, and three borders

9

What are the three surfaces of each lung?

Costal, mediastinal, and diaphragmatic

10

What are the three borders of each lung?

Anterior, inferior, and posterior

11

What makes up the arrangement of the root of the lung?

Pulmonary artery, superior and inferior pulmonary veins, and the main bronchus

12

What are the two main bronchus of the lungs and how do they run?

Right - vertical (wider and shorter)
Left - inferolaterally

13

How many lobes do the right and left lungs have?

Right - 3
Left - 2

14

Vasculature of the lungs

1 pulmonary artery and 2 pulmonary veins

15

Pulmonary arteries

Carry de-oxygenated blood to the lungs

16

Pulmonary veins

Carry oxygenated blood from the lungs to the left atrium of the heart

17

Where are parasympathetic ganglion cells located?

Pulmonary plexuses and along the branches of the bronchial tree

18

Where are sympathetic ganglion cells located?

Paravertebral sympathetic ganglia of the sympathetic trunks

31

The esophagus is compressed by what three structures?

Aortic arch, left main bronchus, and diaphragm

32

Bronchial artery of right lung

Comes from the superiorposterior intercostal artery, common trunk from thoracic aorta, and left superior bronchial artery

33

Bronchial artery of left lung

Comes from the thoracic aorta

40

What is the orientation of the main bronchus and pulmonary artery for the right lung?

Pulmonary artery is anterior to the main bronchus

41

What is the orientation of the main bronchus and pulmonary artery for the left lung?

Pulmonary artery is anterior to the main bronchus

42

What are the two divisions of the mediastinum?

Superior and inferior mediastinum

43

What structures does the superior mediastinum contain?

SVC, brachiocephalic veins, arch of aorta, thoracic duct, trachea, esophagus, thymus, vagus nerves, left recurrent laryngeal nerve, and phrenic nerves

45

What are the three divisions of the inferior mediastinum?

Anterior, middle, and posterior mediastinum

46

What structures does the anterior mediastinum contain?

Thymus, lymph nodes, fat, and connective tissue

47

What structures does the middle mediastinum contain?

Pericardium, heart, roots of the great vessels, arch of the azygos vein, and main bronchi

48

What structures does the posterior mediastinum contain?

Esophagus, thoracic aorta, azygos and hemiazygous veins, thoracic duct, vagus nerves, sympathetic trunks, and splanchnic nerves