What is the process of breathing in called?

The process of breathing in is called inhalation. During inhalation, the diaphragm and intercostal muscles contract, increasing the volume of the thoracic cavity and causing air to be drawn into the lungs. This process is essential for supplying the body with oxygen, which is necessary for cellular respiration and energy production.

The term inhalation comes from the Latin word "halare," which means to breathe. Inhalation is a critical component of the respiratory cycle, consisting of both inhalation and exhalation. Understanding this process is vital for grasping basic respiratory physiology and its significance in maintaining health and supporting biological functions.