Skin, hair and nails

The skin acts as both the body’s shell and shield as well as a sensory organ. But what is it made up of? What is the purpose of hair and how do nails grow?

Skin, hair and nails from A to Z

Popular in Skin, hair and nails

  • How much sun is too much?

    We all know that too much sun is bad for your skin. But how do you know how long you can stay in the sun? You can't see or feel UV light, so it's dif...

  • Structure of the nails

    Fingernails and toenails are made from skin cells. Structures that are made from skin cells are called skin appendages. Hairs are also skin appendage...

  • How does skin work?

    Our skin is our heaviest and largest organ, making up about one seventh of our body weight: Depending on your height and body mass, it weighs between...

  • What is the structure of hair and how does it grow?

    For many people, hair is natural ornamentation and an expression of their personality. Hair can also offer protection: It helps to keep the sun’s ray...