What term denotes the period between end of inspiration and start of the next inspiration?

• A. Cycle Variable
• B. Exhalation
• C. Flow Controller Ventilation
• D. Volume Limit

Answer: (B)

The term is exhalation (expiration). This is the expiratory phase of the breathing cycle, occurring after inspiration ends as the lungs recoil and air flows out until the next inspiration begins. In ventilation, this period separates consecutive breaths. The other options do not describe a phase of the cycle: a cycle variable is a measurement concept, flow controller ventilation is a mode, and a volume limit is a safety setting, not the name of the breathing phase between breaths.