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The Integumentary System
By: Isaac Lopez, Jared Victor, Skye Austin, and Gabriela Vasquez
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Functions Protect the body’s internal living tissues and organs
Protect against invasion by infectious organisms Protect the body from dehydration Protect the body against abrupt changes in temperature, maintain homeostasis Help excrete waste materials through perspiration Act as a receptor for touch, pressure, pain, heat, and cold Protect the body against sunburns by secreting melanin Generate vitamin D through exposure to ultraviolet light Store water, fat, glucose, vitamin d Maintenance of the body form Formation of new cells from stratum germanium to repair minor injuring Protect from UV rays.
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Epidermis, Dermis, Hypodermis (Skin)
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Epidermis, Dermis, Hypodermis (skin) facts
Skin is the human body’s Largest Organ The average skin, when stretched out, is 2 Square Meters Skin accounts for around 15% of your bodyweight There are two types of skin Your skin has three layers, Epidermis – Dead & Waterproof, Dermis – Hair & Sweat Glands, Subcutis – Fat & large blood vessels The thinnest skin is found on your eyelids mm thick You lose around hairs a day Hair is made from protein called Keratin
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Clinical Significance
Herpes sores Impetigo Rubella Cancer Psoriasis Rabies Rash Blister Athlete's foot Infection Sunburn Skin cancer Albinism Acne
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acne Acne, medically known as Acne Vulgaris, is a skin disease that involves the oil glands at the base of hair follicles. Acne is not dangerous, but can leave skin scars. Human skin has pores (tiny holes) which connect to oil glands located under the skin. The glands are connected to the pores via follicles - small canals. These glands produce Sebum, an oily liquid. The sebum carries dead skin cells through the follicles to the surface of the skin. A small hair grows through the follicle out of the skin. Pimples grow when these follicles get blocked, resulting in an accumulation of oil under the skin.
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Rash Rash is a popular term for a group of spots or an area of red, inflamed skin. A rash is usually a symptom of an underlying condition or disorder. Often only temporary, a rash is rarely a sign of a serious problem. A rash may occur on only one area of the skin, or it can cover almost all of the body. A rash may or may not itch. Depending on how it looks, a rash may be described as: blistering (raised oval or round collections of fluid within or beneath the outer layer of skin) macular (flat spots) nodular (small, firm, knotty rounded masses) papular (small, solid, slightly raised areas) pustular (pus-containing skin blisters)
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cold sore Cold sores – also called fever blisters – are a common viral infection. They are tiny, fluid-filled blisters on and around your lips. There blisters are often grouped together in patches. After the blisters break, a crust forms over the resulting sore. Cold sores usually heal in two to four weeks without leaving a scar. Cold sores spread from person to person by close contact. They’re caused by a herpes simplex virus (HSV-1). Cold sores are contagious even if you don’t see the sores.
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Skin Cancer Skin cancer starts in the cells of the skin. Some other types of cancer start in other parts of the body and can spread to the skin, but these are not skin cancers. There are 3 main types of skin cancers: Basal cell skin cancers (basal cell carcinomas) Squamous cell skin cancers (squamous cell carcinomas) Melanomas Basal and squamous cell skin cancers are by far the most common cancers of the skin. Both are found mainly on parts of the body exposed to the sun, such as the head and neck. These cancers are strongly related to a person’s sun exposure.
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Skin Cancer Basal and squamous cell cancers are much less likely than melanomas to spread to other parts of the body and become life threatening. Still, it’s important to find and treat them early. If left alone, they can grow larger and invade nearby tissues and organs, causing scarring, deformity, or even loss of function in some parts of the body. Some of these cancers (especially squamous cell cancers) can spread if not treated, and in some cases they can even be fatal. These cancers are discussed in more detail in Skin Cancer: Basal and Squamous Cell Melanomas are cancers that develop from melanocytes, the cells that make the brown pigment that gives skin its color. Melanocytes can also form benign (non-cancerous) growths called moles. (Your doctor might call the mole a nevus.) Melanomas can occur anywhere on the body, but are more likely to start in certain areas. The trunk (chest and back) is the most common place in men. In women, the legs are the most common site. The neck and face are other common places for melanoma to start. Melanomas are not as common as basal cell and squamous cell skin cancers, but they can be far more serious. Like basal cell and squamous cell cancers, melanoma is almost always curable in its early stages. But if left alone, melanoma is much more likely to spread to other parts of the body, where it can be very hard to treat.
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Integumentary System questions and answers
1.) What is the largest organ of the human body? Answer: Skin 2.) What is the average skin squared meters when it is stretched out? Answer: 2 Square Meters 3.) Skin accounts of what percent of your bodyweight? Answer: 15%. 4.) What are the two types of skin? Answer: Hairy and Glabrous.
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Integumentary System questions and answers
5.) What are the three layers of our skin? Include what the layers have. Answer: Epidermis – Dead & Waterproof, Dermis – Hair & Sweat Skin, Subcutis – Fat & Large Blood Vessels. 6.) What is the thinnest skin found? Answer: The thinnest skin is found in the eyelids. 7.) How many hairs do you lose every day? Answer: You lose hairs in a day. 8.) What protein is hair made out of? Answer: It stores water, fat, glucose, and Vitamin D.
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Integumentary System questions and answers
9.) what macronutrients and other supplements are stored in the Integumentary system? answer: water, fat, glucose, vitamin D 10.) what are the three main types of skin cancer answer: basal cell skin cancers (basal cell carcinomas), Squamous cell skin cancers, (melanomas)
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producers Isaac Lopez- Skin Cancer, Format, Conclusion
Jared Victor- Cold Soars, Facts, Quiz Skye Austin- Rash, Format, animation, Images Gabriela Vasquez- Acne, Introduction, Conclusion, Format, Animations
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