chorioallantoic placenta
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Chorioallantoic membrane — The chorioallantoic membrane of a developing chick covered with Smallpox virus pocks MeSH … Wikipedia
Placenta — A temporary organ joining the mother and fetus, the placenta transfers oxygen and nutrients from the mother to the fetus, and permits the release of carbon dioxide and waste products from the fetus. It is roughly disk shaped, and at full term… … Medical dictionary
reproductive system, animal — Introduction any of the organ systems by which animals reproduce. The role of reproduction is to provide for the continued existence of a species; it is the process by which living organisms duplicate themselves. Animals compete with… … Universalium
chorioallantois — Extraembryonic membrane formed by the fusion of the allantois with the serosa or false chorion. In mammals it forms the fetal portion of the placenta; in avian embryos it is fused with the shell. * * * cho·rio·al·lan·to·is … Medical dictionary
Claire Weekes — Dr Claire Hazel Weekes (1903–1990) was an Australian general practitioner and health writer; she also had an early career as a research scientist working in the field of comparative reproduction. She continues to be noted for her books on dealing … Wikipedia
chorion — chorionic, chorial, adj. /kawr ee on , kohr /, n. 1. Embryol. the outermost of the extraembryonic membranes of land vertebrates, contributing to the formation of the placenta in the placental mammals. 2. Zool. the membrane around the eggs of… … Universalium
membrane — 1. A thin sheet or layer of pliable tissue, serving as a covering or envelope of a part, as the lining of a cavity, as a partition or septum, or to connect two structures. SYN: membrana [TA]. 2. SYN: biomembrane. [L. membrana, a skin or m … Medical dictionary
Interferon — Interferons (IFNs) are natural proteins produced by the cells of the immune system of most vertebrates in response to challenges by foreign agents such as viruses, parasites and tumor cells. Interferons belong to the large class of glycoproteins… … Wikipedia
Smallpox — otheruses4|the disease the 1982 Serbian film|Variola Vera|the fish genus|Variola (Serranidae) Infobox Disease Name = Smallpox Caption = A child infected with smallpox ICD10 = ICD10|B|03| |b|00 ICD9 = ICD9|050 DiseasesDB = 12219 MedlinePlus =… … Wikipedia
chorioallantois — noun The vascular extraembryonic membrane, formed by the fusion of the allantois and the chorion, that makes up the placenta in most mammals; the chorioallantoic membrane … Wiktionary
