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Skin Project

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by

Tai Masuda

on 26 April 2013

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Transcript of Skin Project

Sensation of Skin What are goose bumps?! Sweat What happens when someone sweats? Skin By: Tai, Courtney and Lexie The Purpose of Skin Protection •- things like toxins and pollutants • - the ability to sense injury • - ability to feel pain, heat, coolness, pressure Heat Regulation • - maintains proper temperature for our bodies • - by sweating • - from the environment around us Secretion • - oil, sebaceous glands secrete seblum • - seblum is used to lubricate skin, hair • - keeping us hydrated • - prevents us from losing too much water Excretion • - sweat (sudoferous) glands excrete sweat • - to help detoxify our bodies • - removes excess salts and unwanted waste chemicals Absorption • - select amount of ingredients can be absorbed • - this protects our insides The Layers Of Skin Epidermis The Dermis The Epidermis the outer most layer of your skin protective barrier over the body's surface responsible for keeping water in your body prevents bacteria and viruses from entering Cells in Epidermis - cells in deepest part of epidermis = active - they divide constantly to make more cells - new cells are pushed to skin's surface New cell Going to the surface of skin Cell dies but....... then is filled with keratin (a strong protein) ....then becomes the outer layer of your skin i am dead and keratin filled ...the layer provides a tough protective overcoat Dead New Newer Replaced by new cells Then replaced by newer ones Every 20-30 days your body has an entirely new skin surface WOW • - also blood vessels in skin contract to preserve heat • - through skin http://dermnetnz.org/doctors/principles/images/structure.gif http://dermnetnz.org/doctors/principles/images/structure.gif The Dermis inner layer of skin a thick layer of connective tissue Layers of The Dermis The most common sensations
of the skin are... Touch Feeling an object
or picking it up. Pain Feeling something that gives a hurting sensation. Heat Feeling something warm due to heat exposure or the sun. Also known as... When does it happen? How? How do goose bumps form? What causes them to happen? so many
questions! hmmm.... Goose Flesh,
Chicken Skin,
& Goose Pimples Did you know that
mammals have goose
bumps too? This occurs when one is exposed to fear or coldness. Sometimes, this happens when exposed to extreme heat. This happens when tiny
muscles in your neck and
arm contract. *Click* *Click* How many sweat glands do you have? -Eccrine glands are
found on almost
every type of a mammal. *One person has about
2.6 million sweat glands. *Apocrine glands are bigger than Eccrine glands.
* They are mostly found in the armpit.

*They work on animals like pigs, goats. What is acne? * A type of skin disease on humans. Where and when does acne occur? * Mostly on the upper chest, back, forehead. * Common when Puberty hits. How does Acne form? * Forms with an increase of
testosterone. * Doesn't matter what gender. Different types of pimples * When pimple forms but stays closed. White heads Blackheads * A pore gets clogged and stays open. * Staying open makes the color change * The tip will turn black. ACNE * Oil forms at the top and
turns white. http://en.wikipedia.org/wiki/File:Epidermis-delimited.JPG Did you know that porcupines have goose bumps as well?! -It makes a mostly water based substance,
and also made of NaCl -To prevent the salt in your sweat that is
being lost it is reabsorbed into your skin. . divided into two layers

- upper level (papillary region)
-made of loose connective tissue

- lower level (reticular layer)
- made of tightly packed tissue THE END! Thanks for watching! http://skinipedia.org/skin-essentials/skin-essentials-in-a-nutshell nerves and receptors that help sense touch, pressure and pain inside the dermis there is...... hair follicles sweat and oil glands
-which keep skin soft and healthy the dermis also... acts a cushion against injury heals itself when you cut yourself, forms new tissue (rich new blood vessels and cells) tissue pulls the edges of the cut back together in 1-3 weeks Purpose and Function largest organ one of the most important main purpose
- protect insides from the environment
- and keep everything in your body First of all... What IS Sensation Important Parts of the System we talked about the layers basically the most important Problems, Injuries or Diseases Melanoma - dangerous skin cancer

- irreplaceable DNA damage to skin cells Causes - exposure to ultraviolet rays

- sunlight and tanning beds

- family history, genetics and environmental factors A Dermatologist Interesting Things About Job deals with skin and it's diseases Prerequisites 12 years of studying the skin and training Typical Day on the Job college, medical school and special training day consists of seeing clients and diagnosing patients typically see 30-35 patients patients range form infants from senior citizens salary ranges from $250,000 to $401,000 types of skin cancer, moles and tumors skin acts as a window to what's happening inside your body, which leads to interaction with other doctors in other fields 40-50 hours per week http://www.123rf.com/photo_14749605_man-with-hyperhidrosis-sweating-very-badly-under-armpit.html http://www.clker.com/clipart-hair-10.html http://wheelsms.wordpress.com/2012/10/16/falling-with-grace/ Burns • when you are exposed to strong acid, base or open flame • due to tissues being exposed, burns are classified in degrees • 1st degree - mild, reddening occurs on the epidermis • 2nd degree - pain, redness, swelling and blistering affects the epidermis and dermis • 3rd degree - go through epidermis, affect deeper tissue, cause blackened, charred skin Connections to Other Systems nervous system
- the nerves in our dermis help us feel the things we touch immune system
- important part of immune system
- acts as boundary between germs and your body
- impermeable to bacteria and viruses muscles
- the skin guards underlying muscles ( bones, ligaments, and internal organs)
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