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What Is the Nervous System? Your nervous system is your body's main communication system. It sends messages from your brain to the rest of your body and helps you respond to changes inside and ...

L ooking for a fun way to help students learn about the human body? This human body systems crossword puzzle is a great hands-on activity that makes understanding how our bodies work both engaging ...

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Why can't it just have a rest? Well, the blood has to be kept moving around all the time because it's the body's delivery system. Every possible part of the body has to be supplied with oxygen and ...

The human digestive system refers to the organs that take in food and break them down. Digestion describes the complex process that enables the nutrients in food to enter the body and its cells.

The human body is like a machine - for optimal performance, it needs to be oil, greased, and checked properly at regular ...

Neuroscience examines the structure and function of the human brain and nervous system. Neuroscientists use ... and its relationship to the rest of the mind and body. How Neuroscience Helps ...