3 Relative Words <ul><li>1. Arteries- Tough, elastic tubes that carry blood away from the heart. 2. Aorta- Largest artery in the body. 3. Venules- The smallest veins. </li></ul>
A Supporting Body System <ul><li>The Respiratory System. When the blood reaches the lungs the carbon dioxide is removed. The fresh oxygen we've breathed in through the lungs takes it's place. </li></ul>
5 Terms to Learn <ul><li>1. Inhale- Filling the lungs with fresh oxygen. 2. Arterioles- Thinner arteries. 3. Heart- A muscular organ that pumps blood through the body. 4. Lungs- Respiratory organs that work together with the heart to remove carbon dioxide and replace it with oxygen. 5. Oxygen- The essential element for life. </li></ul>
<ul><li>Heart- A muscular organ that pumps blood throughout the body. Aorta- Largest artery in the body. Vein- Blood vessel that carries blood toward the heart. </li></ul><ul><li>Artery- Blood vessel that carries blood away from the heart. </li></ul><ul><li>Capillaries- The smallest blood vessel that connect arterioles and venules. </li></ul>
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