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V

Vacuole

a cavity or vesicle in the cytoplasm of a cell usually containing fluid


Vapour

gas phase of an agent that can be compressed to a liquid by pressure, e.g. isoflurane and sevoflurane


Vasoconstriction

narrowing of blood vessels


Vasodilation

widening of blood vessels


Vein

blood vessel carrying blood towards the heart


Viraemia

the presence of viruses in the blood


Virulence

the degree of pathogenicity


Virus

an microscopic infectious agent that requires the cells of a host animal (or plant) in which to reproduce


Visceral motor nerve

nerve fibres that carry impulses from the central nervous system to an organ


Visceral peritoneum

thin layer of epithelial tissue covering all the organs in the peritoneal cavity



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