Skin is the body's (1.)____ organ. It is also the main organ of the (2.)___ system, and along with hair, nails, glands and nerves. This system acts as a protective barrier between the outside (3.)___and the inside of the body. It protects the body from (4.)___ (5.)___ and other external factors. The skin serves several functions including(6.)____ of the body temperature, production of (7.)____protection and perception. There are different thicknesses and textures of skin on different parts of the body. For example, skin is paper-thin underneath the eyes, but is thick on the soles of the feet and palms of the hand.
