Use this section to find out about basic human anatomy, how it all functions, and what happens when things go wrong.

• About the Body Basics Library
• Blood
• Bones, Muscles, and Joints
• Brain and Nervous System
• Digestive System
• Ears
• Endocrine System
• Eyes
• Female Reproductive System
• How Do the Joints Work? (Video)
• Immune System
• Kidneys and Urinary Tract
• Lungs and Respiratory System
• Male Reproductive System
• Metabolism
• Mouth and Teeth
• Skin, Hair, and Nails
• Spleen and Lymphatic System
• Your Heart & Circulatory System

Note: All information is for educational purposes only. For specific medical advice, diagnoses, and treatment, consult your doctor.

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