Skin Damage Diagram

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. The cells in all of the layers except the stratum basale are called keratinocytes. Image reproduced with permission of department of dermatology st vincent s hospital melbourne.

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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. Describe the process of at least five factors that contribute to skin damage. Webmd s skin anatomy page provides a detailed image of the skin and its parts as well as a medical definition. The epidermis is the outer layer of the skin. Actinic keratoses are lesions on the outer skin layer caused by too much exposure to the ultraviolet rays of sunlight.

This pigment protects the deeper layers of skin from sun damage. Previous next 2 of 10 damage to darker skin. Terminal differentiation is a type of apoptosis evolved to convert the keratinocyte into the protective corneocyte haake hollbrook 1999. And avoid staying in the sun so long that you get a sunburn or a suntan.

In the skin apoptosis is important in developmental remodeling regulation of cell numbers and defense against mutated virus infected or otherwise damaged cells. Learn about the skin s function and conditions that may affect the skin. Take these steps to protect your skin from the sun. Describe four types of mechanical trauma by the extent of tissue damage.

A keratinocyte is a cell that manufactures and stores the protein keratin. Especially avoid time in the sun between 10 a m. Chapter 5 types of skin damage and differential diagnosis ruth a. Distinguish among the following terms.

Limit your time in the sun. The more melanin in the skin the darker the skin appears and the more protection it has against sun damage. Melanin is the dark brown pigment in the top layer of skin epidermis that gives skin its color. Macule papule plaque nodule wheal pustule vesicle and bulla.

Both result in skin damage that can increase your risk of developing actinic keratoses and skin cancer. When there is an irregular accumulation of melanocytes in the skin freckles appear. The diagram below shows how the different layers and parts of the skin are arranged. 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.

They are also the beginnings of skin cancer most often appearing after age 40. The skin is divided into 3 layers the epidermis the dermis and the subcutaneous layer.