Circulatory System: Facts, Function & Diseases

The human circulatory system keeps blood, oxygen and nutrients flowing through the body. A description of the circulatory system's function, organs and diseases that affect it.

Skeletal System: Facts, Function & Diseases

The human skeleton has 206 bones. The skeletal system performs several vital functions and can be affected by several diseases.

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Digestive System: Facts, Function & Diseases

The human digestive system converts food into nutrients that the body needs. A description of the digestive system's function, organs and diseases that affect it.

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Respiratory System: Facts, Function and Diseases

The human respiratory system consists of the lungs and other organs. Its main function is to take in oxygen and carbon dioxide.

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Muscular System: Facts, Functions & Diseases

The 650 muscles in the human body control movement and help to maintain posture, circulate blood and move substances throughout the body.

Fun Skeleton & Bones Facts for Kids - Information about the Human Skeletal