Technical Terms Circle of Willis: A ring-like arterial structure at the base of the brain that provides collateral blood flow between the anterior and posterior circulations.

Prominently featured in The Inner Circle, George Willis Williams Jr., MD is acknowledged as a 2025 Legacy member for his contributions in Obstetrics and Gynecology.

A third shape hidden in the infamous Vitruvian Man drawing suggests an even deeper understanding of human anatomy than ...

The Country Life quiz runs daily every afternoon, with new editions published at 4pm. Missed a day? Want more quizzes? Catch up with all our previous quizzes here.

District Attorney Fani Willis will stay on to lead Georgia’s election interference case against Donald Trump, but the top prosecutor, with whom she had a romantic relationship, is stepping aside.

Test your knowledge of American history and the Fourth of July with CNN’s Independence Day Quiz. And be sure to watch CNN’s “The Fourth in America,” featuring star-studded performances and ...

Abstract TMP120: Genetic, Environmental and Stochastic Factors Contribute to Variation in the Posterior Communicating Collaterals of the Circle of Willis ...