| A | B |
| skin | largest organ, protects body |
| *epidermis | outer layer of skin |
| dermis | inner layer of skin |
| hair follicles | sacs in which hair develops |
| acne | infected skin oil trapped in a hair follicle |
| boils | bacterial infection in hair follicle |
| calluses and corns | thickened areas of dead skin caused by pressure |
| dermatitis | inflammation of the skin |
| eczema | type of dermatitis causing red, flaking skin |
| herpes | cold sores: blisters caused by a virus |
| melanoma | most aggressive skin cancer |
| warts | lump in skin caused by a virus |
| *dermatologist | specialist in health of the skin |
| *biopsy | sample of tissue cut and examined under a microscope |