Human Body Systems Chapter 4: Circulation
Lesson 1: The Body's Transport System
     Identify the heart's four chambers, four valves, and the two pathways of bloodflow.
     Describe the role of capillaries in the cardiovascular system. 
Lesson 1 QUIZ Tuesday

Lesson 3: Composition of Blood
     Describe the composition and function of plasma.
     Distinguish between red blood cells, white blood cells, and platelets.