vitelline वाक्य
उदाहरण वाक्य
मोबाइल
- Self / non-self-recognition molecules play a key role in the process of interaction between sperm and the vitelline coat of the egg.
- It is filled with fluid, the vitelline fluid, which is utilized for the nourishment of the embryo during the earlier stages of its existence.
- The human venous system develops mainly from the vitelline veins, the umbilical veins and the cardinal veins, all of which empty into the sinus venosus.
- As the vitelline duct is made up of pluripotent cell lining, Meckel s diverticulum may harbor abnormal tissues, containing embryonic remnants of other tissue types.
- Progressive expansion of the amnion from the umbilical ring ( surrounding the roots of the vitelline duct and connecting stalk ) creates a tube of amniotic membrane.
- In some species of Lepidoptera, a waxy layer is present inside the chorion adjacent to the vitelline layer which is thought to have evolved to prevent desiccation.
- It is connected via a pair of ducts to a number of " vitelline glands " on either side of the body, that produce yolk cells.
- In the cortical reaction, cortical granules directly beneath the plasma membrane are released into the space between the plasma membrane and the vitelline membrane ( the perivitelline space ).
- The first event of biomechanical-driven hierarchal remodelling occurs just after the onset of heart beat, when the vitelline artery forms by the fusion of several smaller capillaries.
- The hyalin forms a layer adjacent to the plasma membrane and the peroxidases cross-link the protein in the vitelline membrane to harden it and make it impenetrable to sperm.
- The zona pellucida, a thick layer of extracellular matrix that surrounds the egg and is similar to the role of the vitelline membrane in sea urchins, binds with the sperm.
- The fourth hypothesis was commonly accepted, but it was later shown that the right vitelline artery ( right omphalomesenteric artery ) did not supply the anterior abdominal wall in this area.
- The first envelope-the one in contact with the membrane of the egg-is made of glycoproteins and is known as the vitelline membrane ( zona pellucida in mammals ).
- The inside of each mature proglottid is filled with muscular layers and complete male and female reproductive systems, including the tubular unbranched uterus, ovary, genital pore, testes, and vitelline gland.
- Furthermore, it can be attached to the umbilical region by the vitelline ligament, with the possibility of vitelline cysts, or even a patent vitelline canal forming a vitelline fistula when the umbilical cord is cut.
- Furthermore, it can be attached to the umbilical region by the vitelline ligament, with the possibility of vitelline cysts, or even a patent vitelline canal forming a vitelline fistula when the umbilical cord is cut.
- Furthermore, it can be attached to the umbilical region by the vitelline ligament, with the possibility of vitelline cysts, or even a patent vitelline canal forming a vitelline fistula when the umbilical cord is cut.
- Furthermore, it can be attached to the umbilical region by the vitelline ligament, with the possibility of vitelline cysts, or even a patent vitelline canal forming a vitelline fistula when the umbilical cord is cut.
- Blood is conveyed to the wall of the yolk sac by the primitive aorta, and after circulating through a wide-meshed capillary plexus, is returned by the vitelline veins to the tubular heart of the embryo.
- 2 ) Diffusion must occur in a confined space, if a gradient is to be established however many organisms such as the axolotl develop normally even if the vitelline membrane and jelly layers are removed and development occurs in flowing water.
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