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Chest

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The male chest

The chest is a part of the anatomy of humans and various other animals.

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

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
arteries and veins

An X-ray of a human chest area

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.

Chest anatomy - Other animals

drawing of an insect indicating position of the thorax

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.

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]

References

^ Shahani, Rohit, MD. (2005). Penetrating Chest Trauma. eMedicine. Retrieved 2005-02-05.

• • e Human anatomical features
Head	Skull · Forehead · Eye · Ear · Nose · Mouth · Tongue · Teeth · Jaw · Face · Cheek · Chin
Neck	Throat · Adam's apple
Torso	Shoulders · Spine · Breast (Tail of Spence) · Chest · Ribcage · Abdomen · Navel Sex organs (Clitoris · Vagina · Penis · Scrotum · Testicle) – Hip · Anus · Buttocks
Limbs	Arm · Elbow · Forearm · Wrist · Hand · Finger (Thumb · Index · Middle · Ring · Little) · Leg · Lap · Thigh · Knee · Calf · Heel · Ankle · Foot · Toe (Hallux)
Skin	Hair

• • 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)
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")