What does book lung mean?
Definitions for book lung
book lung
This dictionary definitions page includes all the possible meanings, example usage and translations of the word book lung.
Princeton's WordNet
book lungnoun
organ in many arachnids containing many thin folds of membrane resembling the leaves of a book
Wiktionary
book lungnoun
A lamellate respiratory organ found in arachnids.
Wikipedia
Book lung
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.
Wikidata
Book lung
A book lung is a type of respiration organ used for atmospheric gas exchange, found in arachnids, such as scorpions and spiders. Each of these organs is found inside a ventral abdominal, air-filled cavity and connects with the surroundings through a small opening. Book lungs are not related to the lungs of modern land-dwelling vertebrates. Their name describes their structure. Stacks of alternating air pockets and hemolymph-filled tissue give them an appearance similar to a "folded" book. Their number varies from just one pair in most spiders to four pairs in scorpions. Sometimes, book lungs can be absent, and gas exchange is performed by the thin walls inside the cavity instead, with their surface area increased by branching into the body as thin tubes called tracheae. The tracheae possibly have evolved directly from the book lungs, because in some spiders, the tracheae have a small number of greatly elongated chambers. Many arachnids, such as mites and harvestmen, have no traces of book lungs and breathe through tracheae or through their body surfaces only. The unfolded "pages" of the book lung are filled with hemolymph. The folds maximize the surface exposed to air, and thereby maximize the amount of gas exchanged with the environment. In most species, no motion of the plates is required to facilitate this kind of respiration.
Matched Categories
Numerology
Chaldean Numerology
The numerical value of book lung in Chaldean Numerology is: 8
Pythagorean Numerology
The numerical value of book lung in Pythagorean Numerology is: 7
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"book lung." Definitions.net. STANDS4 LLC, 2024. Web. 4 May 2024. <https://www.definitions.net/definition/book+lung>.
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