Redesigned and updated with additional information, this chart shows the cross sections of the skin, nail, and hair anatomy and describes the role of the epidermis, dermis, and subcutaneous layer. This chart illustrates and describes the types of skin lesions: fissure, ulcer, cyst, macule, papule, wheal, vesicle, pustule, bulla, and nodule. It also shows and describes acne (closed and open comedo), actinic keratosis (solar keratosis), junctional nevus (mole), basal cell carcinoma, squamous cell carcinoma, verruca vulgaris (wart), seborrheic keratosis, dermatofibroma, and urticaria (hives). It's three dimensions let you feel texture and form. It features three-dimensional images, bold titles, and clear, easy-to-read labels that make it easy and fun to learn about the body. The durable, lightweight, non-toxic, recyclable plastic will last indefinitely. This chart has a hole at the top for easy wall hanging, and will also stand up on an easel.