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.
To what extent is the United States a nation of diverse landforms? There are eight physical regions in the United States. 1. Pacific Coast-Westernmost region of North America-includes high mountain ranges (Sierra Nevada and Cascades. 2. Intermountain Region-the area between the mountains on the Pacific Coast and the Rocky Mountains-deserts, mountains, plateaus, canyons.