Editing Thorax (section)

{{short description|Frontal part of an animal's body, between its head and abdomen}}
{{About|the anatomy concept}}
{{Redirect|Chest|the furniture used for storage|Chest (furniture)|other uses|Chest (disambiguation)}}
{{Infobox anatomy
| Name = Thorax<br>Chest
| Latin = thorax
| Greek = θώραξ
| Image = Chest.jpg
| Caption = X-ray image of the human chest showing the internal anatomy of the [[rib cage]], [[lungs]] and [[heart]] as well as the inferior thoracic border–made up of the [[thoracic diaphragm|diaphragm]].
| Width =
| Image2 = Surface projections of the organs of the trunk.png
| Caption2 = Surface projections of the organs of the [[Torso|trunk]], with the thorax or chest region seen stretching down to approximately the end of the [[oblique lung fissure]] anteriorly, but more deeply its lower limit rather corresponds to the upper border of the liver.
| Precursor =
| System =
| Artery =
| Vein =
| Nerve =
| Lymph =
}}
The '''thorax''' ({{plural form}}: '''thoraces''' or '''thoraxes''')<ref>{{Cite web |title=Definition: Thorax |url=https://www.oxfordlearnersdictionaries.com/definition/english/thorax |website=Oxford Learner's Dictionaries}}</ref> or '''chest''' is a part of the [[anatomy]] of mammals and other [[tetrapod]] animals located between the [[neck]] and the [[abdomen]].<ref>{{DorlandsDict|nine/000957692|thorax}}</ref><ref>{{MeSH name|Thorax}}</ref>

In [[insect]]s, [[crustacean]]s, and the extinct [[trilobite]]s, the thorax is one of the three main [[Tagma (biology)|divisions]] of the body, each in turn composed of multiple segments.

The human 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]].

[[File:Male Thorax.jpg|thumb|22-year-old male chest and nipples]]