Chest

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The chest is a part of the anatomy of humans and various other animals sometimes referred to as the thorax.

Contents 1 Chest anatomy - Humans and other hominids 2 Chest anatomy - Other animals 3 Chest injury 4 References 5 See also

[edit] Chest anatomy - Humans and other hominids

In hominids, the chest is the 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 ribcage, spine, and shoulder girdle. Contents of the chest include the following:

• organs
  • heart
  • lungs
• muscles

• • major and minor pectoral muscles
  • trapezius muscles and neck
• internal structures
  • diaphragm
  • esophagus
  • trachea
  • xiphoid process
• arteries and veins
  • aorta
  • superior vena cava
  • inferior vena cava
  • pulmonary artery
• bones
  • the shoulder socket containing the upper part of the humerus
  • scapula
  • sternum
  • thoracic portion of the spine
  • collarbone
  • ribcage
  • Floating ribs
• external structures
  • nipples
  • mammary glands
• thoracic abdomen (stomach, kidney/adrenal, pancreas, spleen, and lower oesophagus)

In humans, the portion of the chest protected by the ribcage is also called the thorax.

[edit] Chest anatomy - Other animals

In insects and other creatures with an exoskeleton, the area corresponding to the chest is called the thorax.

In four legged mammals, the mammary glands and nipples are located closer to the back legs, and are therefore not part of the chest. Otherwise, the anatomy contains similar internal organs in different configurations.

[edit] Chest injury

Injury to the chest (also referred to as chest trauma, thoracic injury, or thoracic trauma) results in up to ¼ of all deaths due to trauma in the United States.^[1]

[edit] References

[edit] See also

• Thoracic cavity
• Pectus excavatum
• Pectus carinatum
• Breast
• Chest hair
• Barechested

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v • d • e General anatomy of torso Thorax/ Thoracic cavity Mediastinum (Superior, Anterior, Middle, Posterior) • Superior thoracic aperture • Inferior thoracic aperture • Triangle of auscultation • Intercostal space • Thoracic plane • Thoracic wall/Thoracic cage - fascia (Pectoral fascia, Clavipectoral fascia, Thoracolumbar fascia) • Chest • Midsternal line Thoracic diaphragm openings (Caval opening, Esophageal hiatus, Aortic hiatus, Foramina of Morgagni) • Central tendon • Crus of diaphragm • arcuate ligaments (Lateral, Medial, Median) Abdomen/ Abdominal cavity Retroperitoneum • Paracolic gutters • Hepatobiliary triangle anterior abdominal wall (Arcuate line, Linea alba, Tendinous intersection, Linea semilunaris, McBurney's point, Traube's space, Inguinal triangle) • Inguinal canal (Deep inguinal ring, Superficial inguinal ring, Intercrural fibers, Crura of superficial inguinal ring) • Lumbar triangle • regions (Epigastrium, Hypochondrium, Umbilical region, Latus, Hypogastrium, Inguinal region) • planes (Transpyloric plane, Intertubercular plane, Midclavicular line) fascia (Fascia of Camper, Fascia of Scarpa, Transversalis fascia, Renal fascia, Rectus sheath) Pelvis/ Pelvic cavity Pelvic floor • Retropubic space fascia (Pelvic fascia, Superior fascia of diaphragm of pelvis, Inferior fascia of diaphragm of pelvis, Fascia of the Obturator internus, Tendinous arch, Iliac fascia, Iliopectineal fascia) Perineum Anal triangle (Ischioanal fossa, Pudendal canal, Anococcygeal raphe) Urogenital triangle (Superficial perineal pouch, Deep perineal pouch) Perineal body fascia (Dartos/fascia of perineum/superficial perineal fascia/Fascia of Colles, Perineal membrane/"Inferior fascia of UGD", "Superior fascia of UGD")