Back رئة كتابية Arabic Fil·lotràquea Catalan Buchlunge German Folipulmo EO Pulmón (arácnidos) Spanish ششهای کتابمانند FA Pulmón (arácnidos) GL Paru-paru buku ID Polmoni a libro Italian 書鰓と書肺 Japanese
A book lung is a type of respiration organ used for atmospheric gas-exchange that is present in many arachnids, such as scorpions and spiders. Each of these organs is located inside an open, ventral-abdominal, air-filled cavity (atrium) and connects with its surroundings through a small opening for the purpose of respiration.