Layers Of The Skin Essay

The outer most layer of the skin or Epidermis contains stratified squamous, keratinized, epithelial tissue; which lacks blood vessels, and the cells are packed closely together (Sloane, 1994, p.85)

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The epidermis is the first layer of your skin and the only layer you actually see when you're walking down the street. If you're a surgeon, you probably see the dermis and subcutaneous fat as well, but for now, we are just covering the epidermis.

The skin is divided into three different parts including the epidermis, dermis, and hypodermis. The epidermis is the outermost layer of the skin. This region of the skin has no blood cells or blood vessels running through it. All of the nutrients that the epidermis needs are received through diffusion from the dermis. The epidermis is made up of stratified squamous epithelial cells. The epidermis is made of five separate layers: the stratum basale, stratum spinosum, stratum granulosum, stratum lucidum, and the stratum corneum. Starting at the innermost layer, the stratum basale is where mitosis of keratinocytes takes place. This layer of the epidermis also contains melanocytes which give the skin it’s pigment. As mitosis takes place in the stratum

The three layers that make up healthy skin: Epidermis, Dermis and Hypodermis. Epidermis is composed of keratinized, stratified squamous epithelium. This layer provides a thick, water proof protective covering over the underlying skins. The dermis layer is composed of primarily of dense, irregular, fibrous connective tissue that is rich in collagen and elastin. The dermis contains blood vessels, nerve ending, and epidermally derived cutaneous oranges such as sweat glands, sebaceous glands and hair follicles. The last layer is Hypodermis this layer is composed primarily of loose dead skin. The fat layer provides cushioning and insulation for

Skin is the largest organ on the body. It has two layers: the thin outer layer is made up of dead skin cells that are constantly shed and replaced by new cells. The thick inner layer is made up of blood vessels, nerves, and hair follicles, which contain glands. The glands in the hair follicles produce an oily substance called sebum, which keeps the skin and hair from drying out. Daily washing will keep the skin on the face and other areas of the body clean by removing the dirt, oil, and dead cells before they can accumulate.

The skin is part of the integumentary system, and it is the largest organ in the body (Human Anatomy Book, 119). The integument is made up of two layers: the epidermis and the dermis; deep to the dermis, however, is the hypodermis. The hypodermis is not part of the integument, but it is still taken into consideration as the deepest layer of the skin (Human Anatomy Book, 119). The epidermis, being the most superficial part of the skin, consists of five different layers: stratum basale, stratum spinosum, stratum granulosum, stratum lucidum (in thick skin only), and stratum corneum. The stratum basale, however, consists of many cells, one of them being melanocytes (Human Anatomy Book, 121). These cells are responsible for the production of melanin,

The skin is the largest organ of the body, the skin protects us from microbes and the elements, it also helps regulate body temperature, and permits the sensations of touch, heat, and cold. There are three layers of skin, this includes the epidermis, the outermost layer of skin, provides a waterproof barrier and creates our skin tone, the dermis, beneath the epidermis, contains tough connective tissue, which gives the skin flexibility and strength, hair follicles, produce the various types of hair found throughout our body, sweat glands, these produce sweat in response to stress and heat, blood vessels of the dermis are what help regulate our body temperature, and nerve ending, which sense pain, pressure and temperature and the hypodermis, the deeper internal tissue is made of fat and connective tissue, this functions as a protective shield for

The epidermis is the layer of skin that we can see. It is meant to be able to hold everyday life. Able to stand ware and tare. The skin is considered dead because no blood vessels connect to the epidermis. Compared to the dermis which holds all of the blood vessels, and allows the skin to expand (pregnancy). The hypodermis is the layer of skin that connects the skin to to the muscle. Using loose connective tissue to do so. The hypodermis is also where most of the bodies fat is stored.

Body temperature regulation * Vitamin D synthesis * Sensation to touch, pressure, pain and temperature * 2 main regions: * epidermis * 5 strata * corneum * top layer, cornified layer, layers of dead cells and soft keratin * lucidum * granulosum * spinosum * basale * deepest layer, contain melanocytes

Fact 1: Biology - The skin The skin is the outer most layer of most animals and is seen as the largest organ of the body consisting of 3 layers, namely the epidermis, dermis and sub-dermis or hypodermis. These layers contain different specialized structures, as can be seen on the diagram on the cover page, which perform functions that are essential for our survival. The skin separates the internal body from the surrounding environment and thus it protects the body against water loss, radiation, toxic chemicals and infections in the surrounding environment. One of the structures that is further discussed are melanocytes in the epidermis and melanin production.

The epidermal Layer consists of 5 strata layers called the stratum basale, stratum spinosum, stratum granulosum, stratum lucidum, and the stratum corneum. The stratum basale contains two cells called the keratinocytes and melanocytes. Keratinocytes produce keratin and melanocytes produce melanin. Melanin is only found in the epidermis and it protects the body from UV rays. The stratum spinosum has tons of layers of keratinocytes. “The deepest spinosum layer can undergo mitosis, pushing more keratinocytes toward the surface” (Tabor). The stratum granulosum has cells that contain an oily substance. This oil substance waterproofs the skins and prevents the skin from dehydrating. Stratum Lucidum cells have no nuclei or organelles. The stratum corneum

Skin is made of stratified squamous epithelium and inner connective tissue layer. Skin is made of several layers. This layer is top of the hypodermis. All part of the body has the stratified squamous epithelium, but in each of them has a totally different thickness. Hypodermis has the all blood vessels, nervous, and fat.

Stratum Corneum this layer is the outer most layers; it is formed from numerous layers of compressed scale- like, overlapping cells. What makes up the surface of the skin is corneocytes, which are commonly called ‘dead skin cells’. Keratinocytes are found in the epidermis they travel up through the layer where they are formed into corneocytes. The stratum corneum layer protects against lights, chemicals, water loss, heat and bacteria.

The Integumentary system additionally referred to as the integument (The skin) is the biggest organ in the body. It has a surface territory of around two Square meters, varies in thickness and incorporates hair and nails. There are two parts to the integument the cutaneous membrane which is the skin and the accessory structures which all originate from within the dermis.(Anderson, 2012, p.3)The structure of the integumentary system is comprised of different layers the epidermis, dermis and subcutaneous layer. The epidermis is the external layer of the skin and is comprised of epithelial cells. The epidermis does not have vessels so it is called avascular. Inside the epidermis are four cell types, Keratinocytes cells give defensive