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. Read the latest articles of CHEST at ScienceDirect.com, Elsevier’s leading platform of peer-reviewed scholarly literature The meaning of CHEST is a container for storage or shipping; especially : a box with a lid used especially for the safekeeping of belongings. How to use chest in a sentence. New to CHEST? Sign up for a free account to access free courses and explore more that CHEST has to offer to support your professional development. CHEST chest noun [C] (BOX) a large, strong box, usually made of wood, which is used for storing valuable goods or possessions or for moving possessions from one place to another In mammals, the parts that make up the thorax are the sternum, the thoracic vertebrae and the ribs. It starts from the neck and stops at the diaphragm. Women develop breasts on the chest during puberty, while male chests generally remain flat, while gaining muscle and many men grow chest hair. Corrigendum to: Rivard R, Mailhot-Larouche A, Borg C, et al. Hypereosinophilia With Pseudomonas aeruginosa Infection in Patients With Asthma on Anti-Inteleukin-5 Biologics. CHEST. 2026;170 (1):E1-E4. The American College of Chest Physicians (CHEST) is the global leader in advancing best patient outcomes through innovative chest medicine education, clinical research, and team-based care. Your chest is the upper part of the trunk of your body, stretching from your neck to your abdomen. It holds and protects some of your most important organs.