Ultra-organized cell systems

Do you realize there are about 100 trillion cells in your body? That's a lot of cells to manage! It's a good thing they are organized into systems that all work together. This book takes you on a journey inside your body to see many types of cells--skin cells, blood cells, muscle cells, and more--magnified hundreds or thousands of times larger than their actual size. You'll find out how groups of cells work together to keep your body running. Are you ready for this microquest?

• 1 Your organized body p. 4
• 2 Cell basics p. 8
• 3 A look at tissues p. 18
• 4 A glimpse at organs p. 28
• 5 A peek at organ systems p. 36
• 6 Organized organisms p. 42
• Glossary p. 44
• Read more about cells, tissues, organs, and systems p. 46
• Index p. 47