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Most people think digestion begins when you first put food in your mouth. But the digestive process actually starts even before the food hits your taste buds.
The human body isn't just one big system, it is actually made up of many different separate systems, all working together to make sure that you, as a whole, function correctly. Each system has special
This student resource accompanies the lesson, Skin as an Organ.
The 650 muscles in the human body control movement and help to maintain posture, circulate blood and move substances throughout the body.
Each day you breathe about 20,000 times. Find out more about the lungs and breathing process.
If the brain is a central computer that controls all the functions of the body, then the nervous system is like a network that relays messages back and forth to different parts of the body. Find out h
The heart and circulatory system (also called the cardiovascular system) make up the network that delivers blood to the body's tissues.
The endocrine system influences almost every cell, organ, and function of our bodies. It is instrumental in regulating mood, growth and development, metabolism, and sexual function, among other thing