LESSON 1.1 - AN INTRODUCTION TO THE CIRCULATORY SYSTEM

LESSON 1.1 - AN INTRODUCTION TO THE CIRCULATORY SYSTEM Overview: ... The heart pumps blood throughout the body through a closed system of tubes. These tubes that carry the blood are called blood vessels. There are three types of blood vessels: arteries, veins, and capillaries. Student Handout . Unit: Biology C - Circulation Science 21 Bio C - Circulation B48 Arteries carry blood away from the ... ................
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