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Human Skin Powerpoint Template

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Skin Powerpoint

Transcript: By ~ Marley Mezzatesta + Chris Dueñas Integumentary System Integument-ary System Integumentary System The integumentary system comprises the skin and its appendages acting to protect the body from various kinds of damage, such as loss of water or abrasion from outside. The integumentary system includes hair, scales, feathers, hooves, and nails. Integument Vocab Vocabulary Dermis ~ The dense inner layer of skin beneath the epidermis, composed of connective tissue, blood and lymph (blood) vessels, sweat glands, hair follicles, and an elaborate sensory nerve network. Epidermis ~ The upper or outer layer of the two main layers of cells that make up the skin. The epidermis is mostly made up of flat, scale-like cells called squamous cells. Hypodermis ~ The tissue immediately beneath the epidermis of a plant especially when modified to serve as a supporting and protecting layer. Integument Vocab Integument Diagram Integument Diagram Integument Diagram Video Video Video Sebaceous Oil Gland ~ Any of the numerous holocrine glands in the dermis that empty into a hair follicle and produce and secrete sebum. Skin Cancer ~ the abnormal growth of skin cells — most often develops on skin exposed to the sun. But this common form of cancer can also occur on areas of your skin not ordinarily exposed to sunlight. Arrector Pili Muscle ~ The arrector pili muscles are small muscles attached to hair follicles in mammals. Contraction of these muscles causes the hairs to stand on end, known colloquially as goose bumps. More Vocab More Vocab More Vocab Some sources estimate that more than half of the dust in your home is actually dead skin. Dead skin comprises about a billion tons of dust in the earth’s atmosphere. Your skin is home to more than 1,000 species of bacteria. The skin renews itself every 28 days. Skin-Crawling Facts Skin-Crawling Facts Skin-Crawling Facts Integumentary Pics Integumentary Pics Integumentary Pics Melanocyte ~ mature melanin-forming cell, typically in the skin. Blood Vessels ~ a tubular structure carrying blood through the tissues and organs; a vein, artery, or capillary. Hair Shaft~ The hair that sticks out of the skin Hair Follicle ~ The root of the hair that stays inside of a little sack located in the outer root sheath at the insertion point of the arrector pili muscle. Even More Vocab Even More Vocab Even More Vocab Skin Deep Memes Skin Deep Menes Skin-Deep Memes Works Cited Works Cited Works Cited Google Search Engine


Transcript: Is the largest system of the body 16% of body weight 3-Hypodermis Understanding how the skin can function in these many ways starts with understanding the structure of the 3 layers of skin Human Skin Loose connective tissue Storage for FAT-½ of body’s fat. Connects the upper layers of skin to muscle Insulates Absorbs shock Skin Types -Even the epidermis has layers! Very top layer is dead skin cells. Called Stratum Corneum Protects you Slightly acidic Every minute of the day we lose about 30,000 to 40,000 dead Athlete’s foot. A contagious fungal infection of the epidermis. Psoriasis. The chronic inflammatory skin disease. Cause unknown. No definitive treatment. Dermis-Thicker Inner Layer of Skin. -If too cold Dermal blood vessels constrict Prevents heat from escaping Any questions? Anything you would like to know that I didn’t cover? Terminology 5-Excretion Oil and sweat glands Dermis contains lots of sensory cells Blood vessels regulate body temperature Collagen and elastin Immune cells. 1-Dry skin Needed for calcium absorption Small amounts of waste products are lost through perspiration *First line of defense against -Bacteria -Viruses -Ultraviolet (UV) radiation -Dehydration 2-production Vitamin D You sweat a lot . Your face is covered with pimples, almost throughout the year. Not only pimples, you might have lots of black heads, white heads . Basically your face is an oil slick. In broader terms there is normal and sensitive skin. 4-Body temperature regulation combination skin, which means your skin is both dry and oily part in different portions of your face. If you have combination skin then you can feel oil on your T zone Epidermis- the layer on top -If too hot Dermal blood vessels dilate Vessels carry more blood to surface so heat can escape 3-Combination skin Human skin contains cells that produce melanin (melanocytes), a pigment that gives colour to the skin and helps protect the body from the sun’s ultraviolet rays. An overproduction of melanin leads to hyperpigmentation of the skin. Facts and Information Yamen Refaei Oily skin combination skin 2-Dermis Functions of the skin The Skin 3-Sensation Diseases of the skin Acne. A common and chronic disorder of the sebaceous glands. Dry skin 1-Epidermis 3,000,000 cells. 10 hairs. 1 yard of blood vessels. 4 yards of nerves. 700 sweat glands. 200 nerve endings to record pain. 3000 sensory cells at the end of nerve fibers 2-Oily skin Connective tissue. Elastic fibers. Nerve endings. Muscles. Hair follicles. STRUCTURE OF SKIN Hyperpigmentation It is simple to understand Your face is always dry and flaky, especially when you clean your face then if you feel that your skin becomes very tight and very dry, you have dry skin. Hypodermis One Square Centimeter of Skin Contains: Terminology 1-Protection Sensory receptors

Human Skin

Transcript: What would life be like without it? How does sunscreen work? How does it repair itself? Skin is essential to a person's survival. It forms a barrier that prevents harmful substances and microorganisms from entering the body. It protects body tissues against injury. Our skin also controls the loss of life-sustaining fluids like blood and water, helps us regulate body temperature through perspiration, and protects us from the sun's damaging ultraviolet rays. How does it work? The skin "keeps us in" and "everything else out". However, the skin also excretes moisture to evaporate which cools our body down and helps us maintain a constant temperature of 98.6 degrees. The skin is the largest organ of the human body that weighs approximately 16% of our body weight. The human skin is the outer covering of the body. The skin has multiple layers of ectodermal tissue and protects the underlying muscles, bones, ligaments and internal organs. Sunscreen combines organic and inorganic chemicals to filter the light from the sun so that less of it reaches the deeper layers of your skin. Like a screen door, some light penetrates, but not as much as if the door wasn't present. Sunblock, on the other hand, reflects or scatters the light away so that it doesn't reach the skin at all. What is it? The skin's function are protection, sensation, heart regulation, control of evaporation, Aesthetics and communication, storage and synthesis, excretion, absorption and water resistance. Human Skin The skin is also known as the dermis. Stem cells in the dermis as well as cells that make up the epidermis are responsible for creating new tissue. If bleeding occurs in the area where skin has been damaged it is likely that clotting and scabbing will occur. The stem cells will repair around and under the scabbed area. What is its function?

Human skin

Transcript: The Human Skin By Susu Bedawi The website I used was: All about the human skin You might be surprised but the human skin is the bodys biggest organ! You may not think of the skin being an organ but the skin is very importent. It covers and protects everything inside your body. Without skin , Peoples muscles, bones and organs would be hanging all over the place! Skin holds eveything together. It also: Protects our bodys Helps our bodys stay at the right temperature Allows us to have a sence of touch Layers The Skin is made up of three layers. Epidermis Dermis Subcutaneous The Epidermis Look down at your hands for a minute. Even though you can't see anything happening your epidermis is hard at work. At the bottem of your epidermis new skin cells are forming. When the cells are finally ready, they start moving towards the top of your epidermis. This trip takes about 2 weeks to a month. As newer cells continue to move up older cells near the top die and rise to the top of your skin. What you see on your hands [ and everywhere else on your body] are really dead skin. Bye Bye Skin Cells The old cells are tough and strong just right for covering your body and protecting it. But they only stick around for a little while. Soon they'll flake off. Though you can't see it happening, every minute of the day you lose about 30,000 to 40,000 skin cells of the surface of our skin. So just in the time you've listened to my presentation so far you've lost about 40,000 cells! But don't think your skin might wear out someday. Your epidermis is always making new skin cells that rise tothe top to replace the old ones. Most of the cells in your epidermis [ 95% ] work to make new skin cells. And what about the other [ 5% ]? They make a substance called Melanin. Melanin gives skin its colour.The darker your skin is the more Melanin you have. When you go out into the sun, these cells make extra melanin to protect you from getting burned by the suns ultra violet, or UV, rays. Thats why your skin gets tan if you spend alot of time in the sun. But even though melanin is very strong, it can't shield you all by itself. You'll want to wear sun cream and protective clothing. Protecting your skin now can also help provent skin cancer when you get older. Dermis The next layer down is the Dermis. You can't see your dermis because it's hidden under your epidermis.Inside the dermis there are nerve endings, blood vessels, oil glands, and sweat glands. Glands are like little pockets with liqids in them. The dermis also contains collagen and elastin, which are tough and streachy. Nerve system The nerve endings in your dermis tell you how things feel when you touch them. They work together with your brain system , so that your brain gets the message about what your touching. Sometimes what you feel is dangerous, so the nerve endings work with your muscles to keep you from getting hurt. If you touch something hot the nerve endings in dermis respond right away: 'Ouch! Thats hot!!!' The nerves quickly send a message to the brain, which then immeditly commands the muscles to take your hand away. This all happens in a split second , without you ever thinking about it. Subcutaneous The third bottom layer of the skin is called the subcutaneous layer. It is made mostly fat and helps your body stay warm. This layer is where you'll find the start of the hair, too. Each hair on your body grows out of a tiny tube in the skin called follicle. Every follicle has its roots way down in the subcutaneous layer and continues up through the dermis. You have follicles all over your body, exept on your lips, the palms of your hands and the soles of your feet. Did You Know You have more than 100,000 follicles on your head alone!!!!!! If you haven't been feeling so well for the last few days , and you've had a runny nose and a cough. Then one morning you wake up and stumble into the bathroom and look in the mirror and yikes! You have the chiken pox! Chicken pox is caused by a virus called Varicella zoster. People who get the virus get a rash of spots all over there bodies. What Happenes when you get Chicken Pox? Chicken pox may start out seeming like a cold. You might have a runny or stuffy nose , sneezing, and a cough. But one to two days later , the rash begins, often in bunches of spots on the chest and face. From there it can spread out quickly over the entire body. Sometimes the rash can get inside a persons ears or mouth. How does Chicken Pox Spread? A person who has Chicken Pox can pass it to someone else by coughing or sneezing, When he or she coughs, sneezes, laughs and even talks, tiny drops come out of there mouth and nose. These drops are ful of Chicken Pox virus. It's easy for others to breath in these drops or get them on there hands. Before you know it the chicken pox virus has affected someone new. Itchy Itchy Scratchy Scratchy If you are that unlucky person, how do you keep your chicken pox from driving you crazy? They are very itchy but your not suposed

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