The Skin Structure and Function:
The skin is the largest organ. It covers the whole body and is water-resistant. The skin consists of two layers; the Epidermis and Dermis (under which lies the subcutaneous or fatty layer).
The epidermis is the layer of skin that we can see. It varies in thickness. The thickest layer is on the soles of the feet and the palms of the hands. The thinnest layer is on the eyelids and nipples. The cells on the surface are constantly coming off (shedding) this is known as desquamation. They are also constantly being replaced from below as cells from the basal layer of the epidermis multiply and are pushed up to the surface. The basal layer of the epidermis receives its blood supply, nutrients and fluids from the dermis. There are five layers of the epidermis:
Stratum Corneum (surface):
•
…show more content…
Normal body temperature is 37 degrees Celsius. Heat is absorbed and maintained in the subcutaneous layer of adipose tissue and regulated in the following ways:
• Cooling (vasodilation): when the body becomes hot, the capillaries dilate allowing more blood to reach the surface of the skin. The pores dilate allowing the heat to be lost from the body. This causes the skin to flush (known as hyperaemia). Sweating will occur simultaneously and the evaporation of perspiration from the skin’s surface has a cooling effect on the body.
• Warming (vasoconstriction): when cold the body protects itself by moving blood from the extremities to the vital organs, ensuring that they are kept warm. With the blood diverted to the major organs the capillaries and pores narrow, the skin appears pale and heat loss is prevented. The erector pili muscles contract, causing body hair to stand on end, trapping air against the surface of the skin, which is then warmed by body heat. Shivering occurs, caused by rapid and repeated muscle contractions which work to raise body temperature.
Katie Rand A & P Domestic Animals I MWF 11:30-12:20 Homework Assignment 1 Friday, February 24, 2017 1. When there is a full-thickness abrasion to the paw, re-epithelialization would come from pad skin that is still attached at the edge of the paw pad abrasion. 2. As soon as a paw pad abrasion shows keratinization on the brand new epithelium, it is safe to stop bandaging the wound.
You look down at your shivering body and realize the sole reason for your sharp chills. Out of shock, you find yourself wearing shorts and a tank top in this 5-degree weather. You desperately look around you and struggle to find ways for warmth. You are relieved when you see a friend nearby. You gradually wade
Peter Stark describes the different stages of hypothermia, providing information with personal experience of the science behind the cold. When Stark loses a bail to one of his ski’s bindings, he is left with no choice but to search for it as it is his only way of making it to the cabin in a timely manner. Upon searching Stark references, the core body temperature “At 97 degrees, hunched over in your slow search, the muscles along your neck and shoulders tighten in what's known as pre-shivering muscle tone” (Stark 3). Starks vivid imagery allows the reader to feel this event indirectly. Bringing them emotion, as if they were frantically searching for this lost bail knowing it may be their only hope of survival.
The reflex process begins when the tack, or stimulus, makes contact with the integument on the bottom of the foot; this is the arrival of a stimulus. The stimulus’ pathway starts at the epidermis, where it will penetrate all five layers, from the outermost stratum corneum, it travels through the stratum lucidum, stratum granulosum, and stratum spinosum, all the way to the innermost stratum basale. From there, it will continue into the dermis, where there is an extensive network of nerve endings and nerve fibers throughout the two layers of the dermis. The papillary layer contains Meissner’s corpuscles, touch receptors that are sensitive to light touch, which would be able to sense the feeling of the tack making contact with the epidermis. Within the reticular layer are Pacinian corpuscles, touch receptors that can detect deep pressure and vibration, such as the pressure of the tack against the foot.
There are three main types of skin cancer and the most dangerous one is melanoma. It has a number of symptoms that can be seen with naked eye. The scientists still working on developing cure that healing all the infected
Introduction And Background We perpetually worry perpetually concerning skin disorder and it ought to be this fashion too. nobody would ever need spots and pimples on their face, particularly on their face! which region is that space wherever skin disorder appears to hit the foremost. Our face is constantly exposed to everything around whereas most of the body has the shelter of an article of clothing. It meets the wind, the dust, the humidness and conjointly the utmost exposure to daylight that all told cases are that the hardest issue for skin disorder.
The Skin That We Speak The way a person speaks is a direct link to a person’s culture and the environment which he or she was raised in. A person’s language, skin color as well as economic status influences the way he or she is perceived by others. Lisa Delpit and eleven other educators provide different viewpoints on how language from students of different cultures, ethnicity, and even economic status can be misinterpreted due to slang and dialect or nonstandard English by the teachers as well as his or her own peers. The Skin That We Speak: Thoughts on Language and Culture in the Classroom by Lisa Delpit and Joanne Kilgour Dowdy, who collected essays from a diverse group of educators and scholars to reflect on the issue of language
In dermabrasion, the outermost layer of skin with a rough wire brush, or a burr containing diamond particles, attached to a motorized
for warm temperature to be able to eat food,to dry off moccasins and socks and to dry hands and feet.here is an example of it :"Then he bared the other hand for the purpose of eating. He tried to take a mouthful,
Peeling exfoliates and removes dead skin cells and leaves the skin smooth. Choose a gentle product that will remove cells without irritating the skin. Please remember that it is better to have different product for face and a different one for the body scrub, since face skin is more sensitive. You can use also special sponges or body brush. Do not exfoliate the skin if it is already irritated.
Dermatitis is an inflammation of the skin when the skin becomes dry, red, scaly, flaky, itchy, and can be blistered. The skin becomes hard, thickened and cracked, swelled, especially in the eyes, face, or groin areas. Skin can appear darkened or leathery, extreme itching and sun sensitive. The most vulnerable parts of the body are the hands, the forearms and face.
Imagine walking into a room and being instantly identified as a criminal. Imagine having to experience this in every room you enter. Imagine walking into a store and being watched, expected to be a thief or sometimes even expected to reveal a knife, gun or a bomb. When we meet new people, most of us look for differences rather than similarities. From young we are taught that everyone is different and that continually makes us associate others by these differences.
These regions of the skin that are often scratched turn out to be thick and weathered in appearance, and the patches can be red and darker than whatever is left of the skin. Constant scratching can prompt perpetual changes in skin shading. See a doctor if encountering exceptional tingle and/or there are perceptible changes in the skin. Our skin is the boundary to the outside world, is to some degree waterproof, and keeps our inner organs and frameworks safe from the components and from microorganisms attacking our bodies. Atopic dermatitis patients have impeded hindrance capacity.
Talking about skin aging is a sensitive topic these days as no one would like to actually picture the whole process of their skin losing that youthful appeal after a few years. However, it is essential to know that our skin is like any other part of our body. To be more scientific, skin is the largest organ of the human body. This organ is the first layer which serves as the line of defense and prevents the entry of harmful microbes as well as harmful particles. Apart from this, the body temperature is regulated and the moisture content in the body is also regulated to a certain extent by the skin.
The human body is an amazing thing made up of many different parts. These parts are cells, tissues, organs, and organ systems. For starters, one type of cell makes up one type of tissue. Next, two or more types of tissues make an organ. Then, a few organs working together make an organ system.