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Thoracic cavity seen from left. Lungs, among others removed.

The thoracic cavity (or chest cavity) is the chamber of the human body (and other animal bodies) that is protected by the thoracic wall (rib cage and associated skin, muscle, and fascia).

The thoracic cavity includes the tendons as well as the cardiovascular system which could be damaged from injury to the back, spine or the neck.

§Structure

Structures within the thoracic cavity include:

structures of the cardiovascular system, including the heart and great vessels, which include the thoracic aorta, the pulmonary artery and all its branches, the superior and inferior vena cava, the pulmonary veins, and the azygos vein
structures of the respiratory system, including the Diaphragm, trachea, bronchi and lungs^[1]
structures of the digestive system, including the esophagus,
endocrine glands, including the thymus gland,
structures of the nervous system including the paired vagus nerves, and the paired sympathetic chains,
lymphatics including the thoracic duct.

It contains three potential spaces lined with mesothelium: the paired pleural cavities and the pericardial cavity. The mediastinum comprises those organs which lie in the centre of the chest between the lungs.

§Clinical significance

If the pleural cavity is breached from the outside, as by a bullet wound or knife wound, a pneumothorax, or air in the cavity, may result. If the volume of air is significant, one or both lungs may collapse, which requires immediate medical attention.

§Additional images

Illustration of Heart in Thoracic Cavity
Illustration of Heart Position Relative to the Rib Cage

§See also

This article uses anatomical terminology; for an overview, see anatomical terminology.

§References

^ Eskandarlou M, Moaddab AH. Chest wall necrosis and empyema resulting from attempting suicide by injection of petroleum into the pleural cavity. Emerg Med J. 2010 Aug;27(8):616-8. doi: 10.1136/emj.2009.073486. Epub 2010 Jun 17.

§External links

Wikimedia Commons has media related to Thoracic cavity.

thoracic+cavity at eMedicine Dictionary
chest+wall at eMedicine Dictionary (also known as "thoracic wall")
thoraxlesson3 at The Anatomy Lesson by Wesley Norman (Georgetown University)

UpToDate Contents

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Related Pictures

★リンクテーブル★

リンク元	「肺外」「nonpulmonary」「extrapulmonary」「気管外」

「肺外」

Thoracic cavity
Details
Latin	Cavitas thoracis, cavum thoracis
Identifiers
Gray's	p.524
Dorlands; /Elsevier	Thoracic cavity
TA	A01.1.00.049
FMA	7565
	Anatomical terminology