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Human thorax

Thorax
Chest
Chest.jpg
X-ray image of the chest showing the internal anatomy of the rib cage, lungs and heart as well as the inferior thoracic border–made up of the diaphragm.
Surface projections of the organs of the trunk.png
Surface projections of the organs of the trunk, with the thorax or chest region seen stretching down to approximately the end of the oblique lung fissure anteriorly, but more deeply it its lower limit rather corresponds to the upper border of the liver.
Details
Identifiers
Latin thorax
Greek θώραξ
FMA 9576
Anatomical terminology
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The thorax or chest (from the Greek θώραξ thorax "breastplate, cuirass, corslet" via Latin: thorax) is a part of the anatomy of humans and various other animals located between the neck and the abdomen. The thorax includes the thoracic cavity and the thoracic wall. It contains organs including the heart, lungs, and thymus gland, as well as muscles and various other internal structures. Many diseases may affect the chest, and one of the most common symptoms is chest pain.

In humans and other hominids, the thorax is the chest region of the body between the neck and the abdomen, along with its internal organs and other contents. It is mostly protected and supported by the rib cage, spine, and shoulder girdle.

The contents of the thorax include the heart and lungs and the thymus gland); the (major and minor pectoral muscles, trapezius muscles and neck muscle); internal structures such as the diaphragm, esophagus, trachea and a part of the sternum known as the xiphoid process), as well as the content of the thoracic abdomen (stomach, kidney/adrenal, pancreas, spleen, and lower oesophagus). Arteries and veins are also contained – (aorta, superior vena cava, inferior vena cava and the pulmonary artery); bones (the shoulder socket containing the upper part of the humerus, the scapula, sternum, thoracic portion of the spine, collarbone, and the rib cage and floating ribs).


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