Skin Damage Diagram

Image reproduced with permission of department of dermatology st vincent s hospital melbourne.

Skin damage diagram. The epidermis is the outer layer of the skin. When there is an irregular accumulation of melanocytes in the skin freckles appear. Melanin is the dark brown pigment in the top layer of skin epidermis that gives skin its color. The sun is the biggest cause of skin damage says faramarz samie md phd director of mohs surgery and vice chair of the department of dermatology at columbia university medical center in new.

Keratin is an intracellular fibrous protein that gives hair nails and skin their hardness and water resistant properties the keratinocytes in the stratum corneum are dead and regularly slough away being replaced by cells from the. Describe the process of at least five factors that contribute to skin damage. This pigment protects the deeper layers of skin from sun damage. Previous next 2 of 10 damage to darker skin.

The more melanin in the skin the darker the skin appears and the more protection it has against sun damage. Especially avoid time in the sun between 10 a m. Macule papule plaque nodule wheal pustule vesicle and bulla. They are also the beginnings of skin cancer most often appearing after age 40.

The cells in all of the layers except the stratum basale are called keratinocytes. Both result in skin damage that can increase your risk of developing actinic keratoses and skin cancer. Take these steps to protect your skin from the sun. A keratinocyte is a cell that manufactures and stores the protein keratin.

And avoid staying in the sun so long that you get a sunburn or a suntan. Terminal differentiation is a type of apoptosis evolved to convert the keratinocyte into the protective corneocyte haake hollbrook 1999. Too much sun exposure can eventually lead to wrinkling due to the destruction of the cellular structure of the skin and in severe cases can cause sufficient dna damage to result in skin cancer. The diagram below shows how the different layers and parts of the skin are arranged.

The skin is divided into 3 layers the epidermis the dermis and the subcutaneous layer. Chapter 5 types of skin damage and differential diagnosis ruth a. Limit your time in the sun. Learn about the skin s function and conditions that may affect the skin.

Webmd s skin anatomy page provides a detailed image of the skin and its parts as well as a medical definition. Actinic keratoses are lesions on the outer skin layer caused by too much exposure to the ultraviolet rays of sunlight.