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- Allantois - Wikipedia
The allantois ( əˈlæntoʊɪs a-LAN-toe-iss; [1] pl : allantoides or allantoises) is one of the extraembryonic membranes arising from the yolk sac It is a hollow sac-like structure filled with clear fluid that forms part of the developing conceptus in an amniote that helps the embryo exchange gases and handle liquid waste
- ALLANTOID Definition Meaning | Merriam-Webster Medical
The meaning of ALLANTOID is of or relating to the allantois
- Allantois - Definition, Function and Quiz - Biology Dictionary
The allantois is characteristic of reptiles, birds, and mammals, and lies between two other extraembryonic membranes: the amnion, the innermost layer, which covers and protects the embryo; and the chorion, which is the outermost layer, housing the embryo and all the other extraembryonic membranes
- Allantois | Embryonic, Development, Sac | Britannica
Allantois, an extra-embryonic membrane of reptiles, birds, and mammals arising as a pouch, or sac, from the hindgut In reptiles and birds it expands greatly between two other membranes, the amnion and chorion, to serve as a temporary respiratory organ while its cavity stores fetal excretions
- Allantoid - definition of allantoid by The Free Dictionary
Define allantoid allantoid synonyms, allantoid pronunciation, allantoid translation, English dictionary definition of allantoid also al·lan·toi·dal adj 1 Of or having an allantois 2 Shaped like a sausage n See allantois American Heritage® Dictionary of the English Language,
- The Allantois: Development, Function, and Comparative Anatomy
The allantois is an essential embryonic structure in the development of amniotes, including reptiles, birds, and mammals It plays a role in waste management, gas exchange, and the formation of important anatomical structures
- Allantoides | definition of allantoides by Medical dictionary
A membranous sac that develops from the posterior part of the digestive tract in the embryos of mammals, birds, and reptiles It is important in the formation of the umbilical cord and placenta in mammals Also called allantoid
- What does Allantoid mean? - Definitions. net
Allantoid refers to something that is shaped like a sausage or an elongated oval, generally used in the context of biological or anatomical descriptions It's derived from the term "allantois," an extra-embryonic membrane in the eggs of reptiles and birds, and the placenta of mammals, which is typically shaped in this manner
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