Definition. A nuclear stress test measures blood flow to your heart at rest and while your heart is working harder as a result of exertion or medication. The test provides images that can show areas of low blood flow through the heart and damaged heart muscle.
Lesson at a Glance Outline. Chapter 1, Lesson 2: California's Regions (pp. 12-18) I. Four Regions. A. California's four main regions -- the coast, the Central Valley, the mountains, and the deserts -- each have features that set it apart from the other areas. b. Each region offered early settlers different challenges and advantages.
NOTE: In this report, counties that fall into more than one hydrologic region are assigned to the region where most of the population lives, as follows: Bay Area: Alameda, Contra Costa, Marin, Napa, San Francisco, San Mateo, Santa Clara, Solano.