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Body Systems

Reid Dumas

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Across
1.Smooth, slippery, and thick layer of tissue called
2.Chemical in red blood cells that carries oxygen from the lungs to body cells and carries some carbon dioxide from body cells and back to the lungs are called
5.The liquid part of blood, made mostly of water in which oxygen, nutrients, and minerals are dissolved is called
6.A molecule of protein is made up of a large number of building blocks called
10.Microscopic blood vessel that connects arteries and veins has walls one cell thick, through which nutrients and oxygen diffuse into body cells,waste materials, and carbon dioxide diffuse out of body cells are called
11.Waves of muscular contractions are called
12.An organ that relaxes, contracts, and provides the force to move the bodies parts is called
13.Where two or more bones come together is a
14.Two upper chambers of the heart that contract at the same time during the heartbeat are called the
Down
1.The main energy sources of your body are
3.A liquid product of digestion that is called
4.irregularly shaped cell fragment that helps clot blood and releases chemicals that help form fibrin called
7.The process that breaks down food into small molecules so they can be absorbed and moved into the blood is called
8.Tight fitting membrane called the
9.Tough bands of tissue called

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