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The insect vitelline envelope is the outer proteinaceous layer outside the oocyte and egg. The vitelline envelope, not being a cellular structure, is commonly referred to as a membrane. However, this is a technical misnomer as the structure is composed of protein and is not a cellular component. It varies in thickness between different insects ...
The vitelline membrane or vitelline envelope is a structure surrounding the outer surface of the plasma membrane of an ovum (the oolemma) or, in some animals (e.g., birds), the extracellular yolk and the oolemma. It is composed mostly of protein fibers, with protein receptors needed for sperm binding which, in turn, are bound to sperm plasma ...
The major role of the vitelline membrane is to prevent the mixing of the yolk and albumen and also act as an important anti-microbial barrier, as indicated by the high content of lysozyme in the outer layer [1] Vitelline membrane outer layer protein I (VMO-I) binds tightly to ovomucin fibrils, which construct the backbone of the outer layer membrane.
Vitelline arteries, arteries that bring blood to the yolk sac; Vitelline circulation, the system of blood flowing between an embryo and its yolk sac; Vitelline cyst, a developmental defect relating to the closure of the vitelline duct; Vitelline duct, a tube that joins the yolk sac to the midgut lumen of a human embryo
In the human embryo, the vitelline duct, also known as the vitellointestinal duct, [1] the yolk stalk, [1] the omphaloenteric duct, [1] or the omphalomesenteric duct, [1] is a long narrow tube that joins the yolk sac to the midgut lumen of the developing fetus. [2]
Fabrics in this list include fabrics that are woven, braided or knitted from textile fibres. A. Aertex; Alençon lace; Antique satin; Argentan lace ...
VV Vitelline veins, UV Umbilical veins, CV Cardinal veins, SV Sinus venosus. The vitelline veins give rise to: [4] Hepatic veins; Inferior portion of Inferior vena cava; Portal vein; Superior mesenteric vein; Inferior mesenteric vein; The branches conveying the blood to the plexus are named the venae advehentes, and become the branches of the ...
The polymer "hairs" create a thin layer that prevents liquids from making contact with the actual fabric. Nanofabrics with dirt-proof, stain-proof, and superhydrophobic properties are possible as a result of the layer formed by polymer nanofibers. [6] Development of nanofabrics for use in the clothing and textiles industry is still in its early ...