Skin Damage Diagram
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.
Skin damage diagram. Learn about the skin s function and conditions that may affect the skin. In the skin apoptosis is important in developmental remodeling regulation of cell numbers and defense against mutated virus infected or otherwise damaged cells. Webmd s skin anatomy page provides a detailed image of the skin and its parts as well as a medical definition. Chapter 5 types of skin damage and differential diagnosis ruth a.
The diagram below shows how the different layers and parts of the skin are arranged. The cells in all of the layers except the stratum basale are called keratinocytes. A keratinocyte is a cell that manufactures and stores the protein keratin. They are also the beginnings of skin cancer most often appearing after age 40.
Distinguish among the following terms. Describe four types of mechanical trauma by the extent of tissue damage. Melanin is the dark brown pigment in the top layer of skin epidermis that gives skin its color. Previous next 2 of 10 damage to darker skin.
Macule papule plaque nodule wheal pustule vesicle and bulla. This pigment protects the deeper layers of skin from sun damage. The more melanin in the skin the darker the skin appears and the more protection it has against sun damage. Take these steps to protect your skin from the sun.
The epidermis is the outer layer of the skin. Image reproduced with permission of department of dermatology st vincent s hospital melbourne. Especially avoid time in the sun between 10 a m. Describe the process of at least five factors that contribute to skin damage.
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. Both result in skin damage that can increase your risk of developing actinic keratoses and skin cancer. Terminal differentiation is a type of apoptosis evolved to convert the keratinocyte into the protective corneocyte haake hollbrook 1999. Actinic keratoses are lesions on the outer skin layer caused by too much exposure to the ultraviolet rays of sunlight.
And avoid staying in the sun so long that you get a sunburn or a suntan. When there is an irregular accumulation of melanocytes in the skin freckles appear.