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Quizlet the integumentary system
Integumentary system quizlet
Integumentary system quizlet
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Our vertebrate integumentary system performs many functions within the various layers and tissues of the skin. These tasks help protect the skin from all sorts of dangers. One such thing our skin protects us from is ultraviolet radiation. Our skin, when exposed to sunlight for long periods of time, can change its coloring. This process is what happens when an individual gets tan or sunburned. Melanin a unique pigment that darkens our skin when exposed to sunlight protects our skin from radiation that is found in these ultraviolet rays. It surrounds the nucleus acting as a barrier that protects our DNA from ultraviolet radiation that could cause cancer or DNA complications. Another function that the integumentary system performs is thermoregulation
Anthropologists and geographers have studied and overtime come to the conclusion that distribution of skin color is not random. Darker skin color has been found to typically come from near the equator and lighter skin colors are typically coming from closer to the north and south poles. Over the years, researchers have found that darker skin colors has protected the skin from having skin cancer. Recent studies have shown that “skin color is the product of natural selection acting to regulate the effects of the sun’s ultraviolet radiation on key nutrients crucial to the reproductive success” (169).
The integumentary system has five main functions. The five main functions of the integumentary system are protection, regulation, sensation, absorption, and secretion. It consists of the hair, nails, skin, sebaceous and sweat glands. The largest organ of the entire body is the skin. The skin consists of three different layers. The epidermis, the dermis, and the subcutaneous layer, these are the three layers of the skin. There is a layer that is deeper than the skin and contains body fat, that layer is called the hypodermis. Sweat glands are also called sudoriferous glands. One of the functions of the skin is to maintain homeostasis. Synthesis of vitamin D, excretion of urea, excretion of salts and water are a few things that the skin is also capable of. The top layer of the skin is called the epidermis. The epidermis contains five different layers. These layers are the stratum corneum, the stratum lucidum, the stratum spinosum, and the stratum basale. In the epidermis there are four different cell types. The keratinocytes which produce keratin, the merkel cells that are sensitive to touch, the langerhans cells which is a dendritic type off cell, and the melanocytes which produce melanin.
Hair is considered one of the components of the integumentary system, along with the skin, nails, glands and nerves. Mammalian hair has many functions including protection from environmental factors and the ability to disperse sweat gland products such as pheromones. Almost every part of the human body is covered by hair except for the palms, hands and bottoms of the feet. On average, every person has about five million hairs; each of these hairs is born from a follicle or tiny tube-like structure that grows into the dermis layer of the skin. Oftentimes this follicle even reaches the subcutaneous layer, which is made of fat and connective tissue. (UXL Complete Health Research, 2001)
Tanning is a commonly used by Caucasian women to cause their skin tone to darken. Melanin is what gives skin its color. Naturally, when we are exposed to sun, the production of a pigment known as melanin starts which itself acts as a deterrent to the burning effects of ultra violet rays of sun (Pakhare). Some Caucasians find it necessary to tan to increase beauty. It is not necessary to tan to increase beauty.
Tanning affects the human skin through ultraviolet radiation, part of the spectrum of light that omits from the sun to the surface of the earth. Ultraviolet A rays are the longer ultraviolet rays that are projected, and these rays penetrate deep into the layers of skin, causing a tanning effect (Harvard Women's Health Watch, 2). It does this by penetrating into the lower layers of skin, or the epidermis, and triggering cells known as melanocytes to make melanin, the brown pigment that causes tanning (Hyde, Patrice, MD, 1). They account for most of the ultraviolet components emitted by lamps in tanning beds, because they are associated with an almost immediate tanning effect (Brady, Mary S, 2). The shorter rays are ultraviolet B rays, and these rays only reach the outer superficial skin cell layer, also known as the epidermis (Harvard Women's Health Watch, 2). UVB rays, therefore, are the actual cause of sunbur...
Our skin functions as a daily defense for our bodies against disease because of skin and mucous membranes. The skin is a massive organ and it protects everything inside our bodies such as our muscles, bones and organs. Our skin protects us from bacteria, parasites, viruses and pathogens ...
Melanin is the body’s way of protecting the skin this is why darker people tan easier because their melanocytes produce more melanin.
This meant that over time, humans lost most of their hair on their bodies, leaving their skin exposed. Sweat glands were going to help the body cool down, but they couldn’t protect the skin from harmful UV rays. This is where melanin works its magic, and it’s the reason for the diversity in skin color today. Melanin helps reduce the absorption of wavelengths into the skin (Chaplin, Jablonski, 59).... ...
Melanin is the product of cells located within the skin called melanocytes.The function of melanocytes is to manufacture the pigments eumelanin and phaeomelanin. Eumelanin, which is more photostable than phaeomelanin, is the main product of the melanocytes. In melanin, various chemicals, under the influence of enzymes, build a very stable compound that is distributed throughout the body of pigmented peoples. In an experiment by Wasterstrom, 1984, melanin exposed to up to 600 degrees C was shown to retain close to 50% of its original properties. In addition, melanin has been found in 1,000-year-old mummies and in extinct mammoth skins, according to Daniels et al., 1972.
UV radiation causes significant damage to human skin, in the form of sunburns, aging, skin cancer, and nonmelanoma tumors. Human skin damage is primarily a result of tanning. The
The skin is part of the Integumentary system and it is considered the largest organ in the human body. Among its functions, the skin serves as a barrier, body temperature regulator, and metabolic controler. This organ is composed of many parts such as glands, nerves, different tissues, and other important factors. Each component has a specific function for which it is responsible for.
In this paper I will clarify the relation between the integumentary system and the skeletal system. During this paper I will address how the two systems work together to maintain homeostasis and what occurs when balance is not maintained between the integumentary and skeletal system. During this paper I will explain how osteoporosis is directly linked between both the integumentary and skeletal system and ways to prevent or yield this disease.
First degree burns are most commonly due to radiation from sun exposure. The level of melanin can add a protective effect decreasing the chances of sunburn. Sunburn can be separated into four stages: golden or tan, red, purplish red and blister red. When your skin starts to tan it is due to increase in melanin pigmentation, after which it reddens becoming more sensitive to touch. Further exposure, then causes edema leading to purplish discoloration then the final stage of blisters formation and skin
The skin has 3 main function. It has to regulate body temperature, remove waste (perspiration), and protect. The skin is made up of 3 layers. The epidermis is the outer thinner layer of the skin that is made up of dead and living cells. The dermis is the thicker middle layer of the skin that contains blood vessels and nerves. Sweat glands are found in the dermis, they secrete perspiration through ducts to pores on the skin’s surface. To avoid problems like warts, boils, moles, acne, and sunburn you can wash your body daily, wear sunscreen that is 15 or higher, and check your body often...