page_title: Book lung
hierarchical_section_title: Book lung
caption_attribution_description: English: Diagram of spider book lungs. (1) lung slit, (2) space filled with blood, (3) leaves of the book lung.
context_page_description: 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 and connects with the surroundings through a small opening for the purpose of respiration.
context_section_description: 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 the surroundings through a small opening for the purpose of respiration.
caption: Spider book lungs (cross section)
exif: {}