What does 'intercostal' refer to in medical terminology?

In medical terminology, 'intercostal' refers specifically to the space located between the ribs. This term is derived from Latin, where 'inter' means between and 'costal' pertains to the ribs. The intercostal muscles, for instance, play a critical role in the mechanics of breathing by facilitating the expansion and contraction of the thoracic cavity, which allows air to be drawn into and expelled from the lungs. Understanding this term is vital in anatomy and physiology as it aids in locating structures and understanding processes related to the thoracic region of the body. Recognizing that 'intercostal' directly indicates a position or relationship that is centered around the ribs can help in clinical settings when discussing chest pain, trauma, or respiratory issues.