vitelline वाक्य
उदाहरण वाक्य
मोबाइल
- In non-mammalian animals, the zona pellucida ( called vitelline layer ) plays an important role in preventing cross-breeding of different species, especially in species that fertilize outside of the body ( e . g . fish ).
- At the end of the fourth week the yolk sac presents the appearance of a small pear-shaped opening ( traditionally called the " umbilical vesicle " ), into the digestive tube by a long narrow tube, the vitelline duct.
- This itself triggers the cortical reaction, which results in depositing several substances onto the vitelline membrane through exocytosis of the cortical granules, transforming it into a hard layer called the fertilization membrane , which serves as a barrier inaccessible to other spermatozoa.
- A "'Meckel's diverticulum "', a true congenital diverticulum, is a slight bulge in the small intestine present at birth and a vestigial remnant of the omphalomesenteric duct ( also called the vitelline duct or yolk stalk ).
- Blood is conveyed to the wall of the sac by the vitelline arteries ( a branch of the dorsal aorta ), and after circulating through a wide-meshed capillary plexus, is returned by the vitelline veins to the tubular heart of the embryo.
- Blood is conveyed to the wall of the sac by the vitelline arteries ( a branch of the dorsal aorta ), and after circulating through a wide-meshed capillary plexus, is returned by the vitelline veins to the tubular heart of the embryo.
- Proposed mechanisms for the spread of cancer cells to the umbilicus include direct transperitoneal spread, via the lymphatics which run alongside the obliterated umbilical vein, hematogenous spread, or via remnant structures such as the falciform ligament, median umbilical ligament, or a remnant of the vitelline duct.
- Following its release from sperm, lysin binds to the egg vitelline envelope ( VE ) via the VE receptor for lysin ( VERL ), then non-enzymatically dissolves the VE to create a hole, thereby allowing the sperm to pass through the envelope and fuse with the egg.
- Having been recalled to Rome by Galba in 68, he at once impeached Temple of Jupiter Best and Greatest, which had been destroyed in the Vitelline / Flavian civil war, should be restored at the public expense; he saluted Vespasian by his private name, and did not recognize him as emperor in his praetorian edicts.
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