KidsHealth

1Tu pelo
El “pelo” no es solamente el cabello que tienes en la cabeza. Tienes “pelo” (y vello) en casi todas las partes del cuerpo.

2Tus uñas
Tus uñas cumplen una función. La superficie dura de las uñas protege las yemas de los dedos de las manos y de los pies. Además, ¡las uñas de las manos te permiten rascarte con facilidad o quitar el pelo del perro de tu suéter!

3Your Muscles
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.

4Flash Interactive: Body Basics: Muscles and Joints
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.

5Getting Muscles
Kids might wish for bigger muscles, but that kind of grown-up muscle isn't possible until a kid is older. Find out more in this article for kids.

6Word! Involuntary Muscle
You don't have any say over what this kind of muscle does and when.

7The Meaning of Muscular Dystrophy
Muscular dystrophy is a disease in which muscles of the body get weaker and weaker and may slowly stop working. Learn more about it in this article for kids.

8Quiz: Muscles
Take this quiz about your muscular system.

9Lou Gehrig's Disease (ALS)
Lou Gehrig's disease refers to a disorder called amyotrophic lateral sclerosis, or ALS. This disease damages the neuromuscular system, which allows the body to move.

10Strains and Sprains Are a Pain
What's a sprain? What's a strain? Find out in this article for kids.