beta-adrenergic blocking agent. See antiadrenergic. Any of a class of agents that blocks 1 and/or 2 adrenergic receptors in the nervous system, modulating cardiac functions, respiratory functions and the dilation of blood vessels. Effect. Slowed heart rate, lowered blood pressure, reduced anxiety.
Born Lindsay Marie Whalen on May 9, 1982, in Hutchinson, Minn. Married former University of Minnesota All-American golfer Ben Greve on Oct. 6, 2008, in Hutchinson, Minn. Daughter of Neil and Kathy Whalen, is the oldest of five children. Majored in sports management.
Troian portrayed Sarah McGee on NCIS, Teresa on Quantum Leap, Erin on JAG, and (since June 2010) Spencer Hastings on Pretty Little Liars. Bellisario married Vivienne, on November 27, 1998. He gained two stepsons from the marriage: Chad and Sean Murray, the latter an actor who plays Timothy McGee on NCIS.