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.
California is a state in the Pacific Region of the United States of America. With 39.5 million residents, California is the most populous state in the United States and the third most extensive by area. The state capital is Sacramento. The Greater Los Angeles Area and the San Francisco Bay Area are the nation's second- and fifth-most populous urban regions, with 18.7 million and 8.8 million residents respectively. Los Angeles is California's most populous city, and the country's second-most popu