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- Allantois - Wikipedia
The allantois, along with the amnion, chorion, and yolk sac (other extraembryonic membranes), identify humans and other mammals, birds, and reptiles as amniotes
- 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
- Allantois - Definition, Function and Quiz | Biology Dictionary
The allantois is one of the four main membranes that surround an embryo It is found near the posterior of the embryo, since that’s where its development begins
- Allantois - an overview | ScienceDirect Topics
The allantois is defined as a structure derived from splanchnopleure that arises as a diverticulum of the hindgut, gradually filling the extraembryonic coelom and playing a role in vascularizing the chorion and amnion in various species
- Allantois | Radiology Reference Article | Radiopaedia. org
The allantois refers to one of the fetal membranes that contributes to umbilical cord formation It takes part in waste material collection and gas exchange During embryonic development, the allantois transforms into the fetal urachus, which in turn becomes the median umbilical ligament after birth History and etymology
- Allantois: A Significant Embryonic Structure with Multiple Functions
The allantois is a vital embryonic structure found in many vertebrate animals, including birds, reptiles, and mammals It develops as part of the extraembryonic membranes during early embryonic development
- Understanding Allantois in Developmental Anatomy
The Allantois contains a network of blood vessels that allow for the exchange of waste products and nutrients between the embryo and the maternal circulation This process is crucial for the embryo's growth and development, as it relies on the mother's circulation for oxygen and nutrients
- ALLANTOIS Definition Meaning - Merriam-Webster
The meaning of ALLANTOIS is a vascular fetal membrane of reptiles, birds, and mammals that is formed as a pouch from the hindgut and that in placental mammals is intimately associated with the chorion in formation of the placenta
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