Anatomy Mapleson’s classification of an anaesthetic breathing system A Describes four systems A, B, C, D B Classifies the Bain system as Mapleson C Describes the T-piece as M D Describes the T-piece system as requiring a fresh gas flow rate of 1.5 - 2 times the minute volume. 💡 Explanation Mapleson's classification of an anaesthetic breathing system ✓ Correct Answer: B. Classifies the Bain system as Mapleson