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  • Your Muscles for Kids


    You have more than 600 muscles in your body! They do everything from pumping blood throughout your body to helping you lifting your heavy backpack. Find out more.

  • A to Z: Dislocation, Shoulder for Parents


    A shoulder dislocation causes the top of the upper arm bone (humerus) to slip out of its normal position in the shoulder socket.

  • Auditory Neuropathy Spectrum Disorder (ANSD) for Parents


    Some kids have hearing loss due to auditory neuropathy spectrum disorder (ANSD), a problem in the transmission of sound from the inner ear to the brain.

  • Recovering From Delivery for Parents


    After giving birth, you'll notice you've changed somewhat - both physically and emotionally. Here's what to expect after labor and delivery.

  • How the Body Works (Topic Center) for Kids


    The human body is an amazing machine. Learn more about it through movies, quizzes, articles, and more.

  • Bug Bites and Stings for Teens


    Generally, insect bites and stings are harmless. Find out how to keep pests from ruining your fun.

  • Female Reproductive System for Parents


    The female reproductive system is made up of the parts inside and outside a female’s body that help make a baby. Learn about them and how they work.

  • Charcot-Marie-Tooth Disease (CMT) for Parents


    Charcot-Marie-Tooth disease (CMT) is a neurological disorder that causes muscle weakness and numbness, most often in the arms and legs.

  • A to Z: Hernia, Umbilical for Parents


    Learn about hernias and conditions that affect the abdomen and bellybutton.

  • A to Z: Cervicalgia for Parents


    Learn about causes of neck pain and conditions that can affect the cervical spine.