Comparative anatomy of the circle of Willis in man , cow , sheep , goat , and pig

  title={Comparative anatomy of the circle of Willis in man , cow , sheep , goat , and pig},
  author={C. Ashwini and R A Shubha and K. S. Jayanthi},
The circle of Willis (cW), a potential collateral pathway at the base of brain, is a subsidiary network of vascular channels that stabilises cerebral blood flow when principal conduits fail. Considerable variability exists in the anatomy of cW with frequent asymmetry while an ideal configuration is seen in a minority of cases. The importance of this circular anastomosis becomes evident while determining the adequacy of brain circulation in operations of cerebral aneurysms and ligation of… CONTINUE READING


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