Four protective functions of the skin. 5 Functions of the Skin 2019-01-27

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What are the 4 functions of skin?

four protective functions of the skin

How does the skin tan when exposed to ultraviolet light? Still the skin may be disturbed in a number of ways. The most frequent method of transmission of the germs is by the hands, and the conclusion here is the obvious one of scrupulous personal hygiene. Sweat excreted from sweat glands deters microbes from over-colonizing the skin surface by generating dermicidin, which has antibiotic properties. In this the skin is aided by the two million or more sweat-glands which are distributed over almost the entire surface of the body. It is slightly warmer than the body and so relieves the work of the body for a time. Associated with the sebaceous activity in acne, is another condition known as dandruff, and allied with that the condition known as baldness. Label the skin structures and areas indicated in the accompanying diagram of thin skin.

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Skin

four protective functions of the skin

It also keeps pathogens out of your body and helps maintain temperature. The skin is attached to underlying tissue by the hypodermis, which is a major site of fat storage. Boils, another form of skin infection, are caused by a definite bacterium, the staphylococcus aureus. London: Prentice Hall International, 1990. The hands, the face, and finger nails, however, must be washed with care, especially before meals and before food is prepared.

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Skin Function: Protection

four protective functions of the skin

Some areas of the body, for example the hands and face, are more exposed to external forces than other parts. Other , such as the , have different , structure and. We are coming to realize more and more the benefits of wearing as few clothes as possible, and only the minimum amount that will secure warmth should be worn. During strenuous physical activities, such as skiing a or running c , the dermal blood vessels dilate and sweat secretion increases b. Some of the waste products that the skin excretes from the body include: excess water, mineral salts, and urea. Sometimes, however, the skin provides clues to a disorder that affects the entire body. The more superficial the pigment, the more effective the protection it provides against damage caused by ultraviolet radiation.


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HSE

four protective functions of the skin

Melanin is a pigment that affects your skin to keep it the color it is. Eczema causes approximately one-fifth of all the skin troubles. Between the alveolar gland and the duct is the intercalary system which can be summed up as a transitional region connecting the duct to the grand alveolar beneath the epidermal skin layer. Preparation of model membranes for skin permeability studies using stratum corneum lipids. The outer layer or tunica fibrosa is composed of densely packed connective-tissue which connects with fibers from the spongy intermediate layer where elastic fibers as well as nerves reside. These include allergic reactions; skin infections; blood-borne diseases, such as tetanus, hepatitis C, and hepatitis D; and the growth of scar tissue.

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Four protective functions of skin

four protective functions of the skin

The same result may be obtained with layers of paper, for with the air spaces between the layers, there is little conduction of heat. This is the process of filtering air before it enters the lungs. The skin acts as a two-way barrier to prevent the inward or outward passage of water and electrolytes. Numerous superstitions have arisen concerning warts—the lore of every boy and girl—due to the fact that warts disappear suddenly and with no apparent reason. Simple epithelial cells tissue cells arranged in a single layer line the air sacs of the lungs where oxygen is exchanged with carbon dioxide. This is relatively porous and undergoes changes in thickness in response to different factors such as trauma or pressure.

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5.3 Functions of the Integumentary System

four protective functions of the skin

Deep fascia allows free movement of muscles, carries nerves and blood vessels, fills spaces between muscles, and sometimes provides the origin for muscles. Journal of the Mechanical Behavior of Biomedical Materials. There are melanocytes in the normal skin of all races. They play a role in temperature regulation. Scattered throughout the basal layer of the epidermis are cells called melanocytes, which produce the pigment melanin, one of the main contributors to skin color.


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Skin Function: Protection

four protective functions of the skin

The intraepidermal eccrine sweat duct. Your skin serves as a physical barrier that holds your organs in place and shields your insides from the harmful effects of ultraviolet radiation, microorganisms and toxic substances. Biological Reviews of the Cambridge Philosophical Society. Through exercise the amount of heat is increased and sweat is produced and given off. These tissues anchor and support organs and cover bone and cartilage. Tissue can be defined as a group of similar cells and their intercellular substance functioning together to perform a specialized activity.

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The Integumentary System Basic Structure of the Skin Essay

four protective functions of the skin

The outer layer is the epidermis layer of skin; it is composed of stratified squamous epithelium. Water itself will not cause the elimination of oils on the skin, because the oils residing in our dermis flow and would be affected by water without the epidermis. It has three main layers, the epidermis, the dermis and the subcutaneous layer. Early treatment is imperative, for, in this stage, the disease yields readily, but, if it becomes deep-seated, it may be very difficult to eradicate. Some epithelial cells are ciliated. These receptors are more concentrated on the tips of the fingers, which are most sensitive to touch, especially the Meissner corpuscle tactile corpuscle , which responds to light touch, and the Pacinian corpuscle lamellated corpuscle , which responds to vibration. At any rate people are aware that so long as they keep in good condition and take good care of themselves there is little likelihood of acne.

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Print Exercise 7: The Integumentary System flashcards

four protective functions of the skin

This reduction of blood flow helps conserve body heat. Clothes were not originally intended for the purpose of keeping warm, but rather to increase the sexual attractiveness of the individual. Local applications under medical supervision are, of course, of great value. These receptors may be stimulated by stimuli for other sensations. The skin and the various glands connected with it form a complex organism with functions of great importance in the work which the body has to do. Cold makes the blood vessels narrow constrict , retaining the body's heat.

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What is the protective role of skin?

four protective functions of the skin

On the other hand, man uses clothes for this purpose. Heat makes the blood vessels enlarge dilate , allowing large amounts of blood to circulate near the skin surface, where the heat can be released. Epidermal-dermal interactions in adult human skin. The condition of the air influences the amount of work which the sweat-glands do and the amount of perspiration thrown off. The three individual parts of the gland are the duct, the intercalary region, and lastly the alveolar gland sac. Of course the avoidance of that kind of food is the treatment in such a case.

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