How Does the Skin Act as a Barrier

Healthy and functioning skin barrier is important protector against dehydration, penetration of various microorganisms, allergens, irritants, reactive oxygen species and radiation. The skin barrier may be specifically adjusted to allow penetration. For this reason daily skin care may increase skin regeneration, elasticity, smoothness, and thus temporarily change the skin condition.

The Integumentary system is defined as “an organ system consisting in the skin, hair, nails, and exocrine glands” (Integumentary System, 1999). This systems main purpose is to protect the body from the environment around it. The skin covers and protects tissues, nerves, veins, and muscles of the body. The hair and nails give extra strength in reinforcing the skin while keeping the body warm and protecting the skin from harmful UV rays. The exocrine glands of the skin include the sudoriferous glands, sebaceous glands, and the ceruminous glands. Each exocrine gland has a different function as well as location in the skin. The following text will explain the effects of melanoma on the integumentary system.

The outermost layer of the epidermis is known as the stratum corneum, it is water resistant and when not damaged, it protects the body from foreign substances such as bacteria, virus etc. it also ensures the protection of muscles, blood vessels, nerves and internal organs. The skin is also thicker in regions that requires more protection such as the sole of the feet and palms.

1. Protection- An oily layer helps to keep out bacteria and viruses, the strength of the keratin provides a measure of defense from outside mechanical sources (like if you hit your arm—if it is a light tap, you will only get a bruise). Your skin keeps out harmful radiation from the sun (ultraviolet rays), and retains moisture so we don't dehydrate.

The skin is one of the most important organs of the whole human body. It is the largest organ in the human body and contains various functions including protecting the body from injury and preventing fluids from leaving or entering the body (Boer et al. 2016). In animals, the skin has various functions as well. The skin aids with locomotion in bats and aquatic mammals, help camouflage the body in chameleons, helps with finding mates for deer with their white tail, and serves for many other purposes. The skin is composed of three layers in the human body: the epidermis, dermis, and subcutaneous layer. Melanin is produced from melanocytes in the epidermis of the skin. Melanin is important for protection from ultra-violet (UV) rays.

The skin is the body's greatest organ, and it serves as a guarding deterrent. Its wellbeing and surface appearance are controlled by common components and furthermore the limit of the parts that incorporate the layers underneath

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 vertebrate integumentary system is responsible for protection and thermoregulation. The skin covers the human body and also has appendages like hair and nails that all serve to protect the body from damage. The outer layer of the skin, the epidermis serves as a water resistant barrier protecting the body from absorption and leaking while we are swimming or when it is raining. This maintains homeostasis. This means that when we submerge ourselves in water we do not fill up with water and we also do not leak water. The skin serves to protect the body against pathogens and even damaging UV radiation too. The blood vessel and nerves in the dermis serve to warn us when we are in danger by signaling pain when the sun beats too much on a body

The integumentary system is the body’s “first line of defence” against harmful pathogens such as bacteria and viruses. Although the name sounds very complicated, the integumentary system actually one’s skin. Technically, the skin has two major functions: protection, and absorbing useful nutrients. However, theoretically, the category of protection can be split into many other categories. The “protection” can be split into protecting the body from pathogens, protecting body from dehydration, and protecting body from rapid temperature change. An integumentary has many capillaries below the surface, which can help absorb

Discrepancies between the investigational and model outcomes indicate the necessity to restructure auxiliary variables of the model. The addition of constituents to the model e.g. skin whitening, promotes improved explanation of the investigational data, and novel biological and physical experiments may be endeavoured to investigate unidentified procedures involved in and affecting melanin production in the skin with regards to UV radiation. Critical parameters e.g. UV radiation, act as a guide for new experiments to concentrate specifically on the model of melanin

The first layer is epidermis; this outer layer consists of elements such as melanin and carotene which forms the skins color, and keratin that forms finger nails*. Another trait it carries is to shed dead cells that build up over time*. The reason why skin sheds is to replace cells with new ones that allow the skin to quickly repair itself in case of injuries*. Over the span of a year we shed approximately one and half pounds*. It is fascinating that if it was not for this specialty, we

Skin is a very complex organ that does a lot for the human body and has many

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 most superficial layer of the skin is the epidermis. It is considered the toughest layer of skin and it’s main function is to protect deeper tissues. The epidermis protects us from bumps and scrapes because its cells contain keratin, a type of protein, that toughens and strengthens them. It also helps protect deeper tissues from chemical damage such as acids and bases because of it’s keratinized cells. The epidermis also shields us from the damaging effect of sunlight, also know as, ultraviolet radiation.