How many risk factors did you check?
out of 24
Post on 23-Feb-2016
DESCRIPTIONDo Now: Take a clicker and take a packet read the first page and check off your risk factors! **Sunburn is ANYTIME your skin turns pinkish or reddish** **FRECKLES are the same thing as MOLES** HW : Read and study CH 28 Finish POGIL if you dont during class. - PowerPoint PPT Presentation
Do Now: Take a clicker and take a packet read the first page and check off your risk factors! HW read and study CH 28Do Now: Take a clicker and take a packet read the first page and check off your risk factors!**Sunburn is ANYTIME your skin turns pinkish or reddish** **FRECKLES are the same thing as MOLES**HW :Read and study CH 28Finish POGIL if you dont during classHow many risk factors did you check?1 234567 Zero risk factors!You have 10 minutes to Read through page 4 (skin exam page)Answer the questions on page 3If you would like to download the Dr. Mole app, feel free to try it!Keep in mind this does NOT take the place of a dermatologist, nor is it 100% accurate! You should still be conscious of your own skin and keep track of your moles with your eyes!Is sunless tanning (spray tan) the same as regular tanning? NoTanning outside/ in a tanning bed exposes you to UV radiation which can change the DNA in your skin!Sunless tanning deposits DHA on the top layer of your skin.You should consider using sunblock no matter what, ESPECIALLY with a sunless tan. Some studies suggest that you may be more at risk for UV exposure (sun burns, poisonings, etc) if you have DHA in your skin Which form of UV radiation has the LARGEST wavelength?UVAUVBUVCNot sureLook back at your EM spectrum diagram. Based on what you know about frequencies and wavelengths, which UV radiation would have the largest FREQUENCY?UVAUVBUVCNot sureWhich form of UV radiation would be the most DANGEROUS? UVAUVBUVCNot sureTanning beds use UVA and/or UVB rays. The more expensive beds use more of UVA and less of UVB. If you do tan (and please please dont you are beautiful just the way you are!!!), which rays are more likely to cause cancer? UVAUVBSame Not sureYour skin produces collagen, which gives your skin smoothness and elasticity. As you age, collagen production decreases, leading to wrinkles, and that leathery look. Tanning can cause the collagen to break down even faster, causing more wrinkles at an earlier age. This occurs when the UV radiation penetrates deeper in your skin. Which penetrates more deeply into your skin UVA or UVB?UVAUVBSame Not sureLook at this truck driver the side of his face closer to the window has had A LOT of UVA exposure.So which is more likely to age you faster UVA or UVB?UVAUVBSame Not sureSo, either way, are there cosmetic and/or life threatening consequences with indoor tanning? YES!If you do choose to tan indoors, take these steps to reduce your risk:Remember, all UV radiation is potentially hazardousStart slowly. Always follow the manufacturers recommended exposure schedule. (If you look on the tanning bed itself, you will notice that it gives you a schedule that does not exceed 3-4x a week!) Never tan everyday! (3x a week is all the FDA has approved!) Your skin needs time to recover from UV exposure.Wear protective eyewear that meets FDA specifications.After a tan is developed, tanning once every week, or even every two weeks, should be sufficient to maintain your tan.If you do choose to tan indoors, take these steps to reduce your risk:If you are taking medications, ask your doctor or pharmacist if they are potentially photosensitizing. If so, do not tan!Children and teens may have greater risk for skin cancer from UV exposure, so they should be especially careful to minimize UV exposure and burns.Understand WHY you are at risk some studies have shown that tanning can be addictive because it can trigger the same areas of your brain that are linked to drug and alcohol dependence. This explains why so many people regular tanorexic or addicted to tanning.POGILStopping 5-10 minutes before the end of class for a clicker exitCheck in at stop signs! We ARE NOT going over this as a classBased on what you learnedare you going to change your UV exposure habits? YesNoNot sure need to think about it some more and do my own research regarding tanning, sunblock, etc.What type of radiation is more dangerous?IonizingNon ionizingEqually as dangerousNot sureOur atmosphere blocks most cosmic radiation. But, you are exposed to more radiation in a plane, esp. towards the poles why?Atmosphere is thinner as you fly higher, and it is thinner at the poles than the equator Atmosphere is thinner as you fly higher, and it is thicker at the poles than the equator Atmosphere is thicker as you fly higher, and it is thinner at the poles than the equator Atmosphere is thicker as you fly higher, and it is thicker at the poles than the equator Not sureA few years ago, pilots argued they should be allowed to bypass the body-imaging scanners at checkpoints. Why do you think they made this argument? Glass is transparent to SOME TYPES of UV light, which explains why this truck driver has sun damage on the side of his face that was exposed to the drivers window for all those years! Which type(s) of UV radiation is glass transparent to? UVAUVBUVCUVA & UVBUVA & UVCUVB & UVCAll 3 UVsNot sureRemember UVA causes skin aging (collagen breakdown!)Glass is transparent to SOME TYPES of UV light, which explains why this truck driver has sun damage on the side of his face that was exposed to the drivers window for all those years! Which type(s) of UV radiation is glass opaque to? UVAUVBUVCUVA & UVBUVA & UVCUVB & UVCAll 3 UVsNot sureShort wavelengths of visible light interact more frequently with the atoms in glass than do longer wavelengths. Which do you suppose takes MORE time to get through the glass blue light, or red light? Why?BlueRedSame timeNot sure Suppose sunlight is incident upon a pair of reading glasses and a pair of sunglasses. Which pair would you expect to be warmer, and why?Sunglasses Reading glasses SameNot sure Why can't you use visible light to "see" any of the objects in #23-25?Light used to "see" an object must have a wavelength about the same size as or smaller than the object. Visible light is BIGGER than those objects! You need UV light or smaller wavelengths!
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