What materials are identified as good insulators in the body?

Good insulators in the body are materials that resist the flow of electrical current. Skin, tendons, bone, and fat possess these insulating properties.

Skin acts as the body's first barrier to external electrical stimuli, largely due to its outer layer, which is made up of dead skin cells and lipids. Tendons, composed of dense connective tissue, also restrict electrical flow. Bone, being dense and less conductive than other tissues, serves to insulate nerves. Fat tissue is another effective insulator, as it is made up of adipose cells that are non-conductive.

These properties make skin, tendons, bone, and fat excellent insulators compared to the other options, which contain more conductive tissues. Understanding these insulating materials is crucial in various applications of electricity within medical and therapeutic settings, such as electrical stimulation therapies.