PROCHORION Meaning and
Definition
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Prochorion is a term that refers to the embryonic membrane found in the early stages of avian and reptilian development. It is part of the extraembryonic membranes, which surround the developing embryo and provide various functions necessary for its survival and growth.
Specifically, the prochorion is the innermost layer of the chorion, which is one of the extraembryonic membranes. The chorion is formed from the fusion of the somatic mesoderm and trophoblast, and it surrounds the entire embryo and other extraembryonic membranes. The prochorion, being the inner layer, is located closest to the embryo.
The primary function of the prochorion is to facilitate gas exchange between the developing embryo and its environment. It is responsible for the absorption of oxygen and the elimination of carbon dioxide, allowing for respiration to occur despite the embryo being enclosed within the eggshell or the egg capsule. This exchange of gases occurs through small blood vessels present in the prochorion, which connect to the embryo's circulatory system.
In addition to gas exchange, the prochorion also plays a role in nutrient transport. It helps in the absorption and transfer of vital nutrients from the egg or capsule to the growing embryo, providing the necessary sustenance for its development.
Overall, the prochorion is a crucial embryonic membrane that enables gas exchange and nutrient transfer, ensuring the proper growth and development of avian and reptilian embryos.
Common Misspellings for PROCHORION
