Chest

In humans, 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