Term
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Definition
| Helps to fight off inside anvadors. Keeps us warm/cool with... sweatglands/capilaries |
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| Lymphatic helps with synthesis of |
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Definition
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Term
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Definition
| Squamos cells/ Basal Cells/ Melanocyte |
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Term
| what is responsible for nails? |
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Definition
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Definition
| charged with making melonin, where the coloration of your skin comes from |
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Term
| We all have the same number of melanocytes but it's essentially about |
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Definition
| How much they are pumping out. |
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Term
| How much UVR does dark skin vs. light skin filter out? |
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Definition
| dark skin- 95% light skin- 50% |
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Term
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Definition
UVC- caught in atmosphere. UVB- sunburn, melanoma, DNA cells being altered. UVA- more reaches us than UVB+UVC combined but is less affective.UVA 400 nm - 320 nm
UVB 320 nm - 290 nm
UVC 290 nm - 100 nm |
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Term
| What are the disadvantages of sunburn? |
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Definition
| More prone to infection. hard to provide temperature control. |
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Term
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Definition
| certain chemicals that break down. folic acid, riboflavin, Vitamin E through photolysis. |
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Term
| UVR will act on a particular compound that will |
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Definition
| enhance the production of Vitamin D, which is why we have dark skin. |
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Term
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Definition
| lack of Vitamin D in children. |
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Definition
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Definition
| ratio of width to length of the skull. Humans: 70-90 % |
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Term
There is a clear relationship between |
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Definition
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Term
| Also head shape is influenced by: |
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Definition
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Term
| Cooler temperature will create what kind of head shape? Why? |
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Definition
| Rounder. for evaporation purposes. Rounder head has a lower suface to volume ratio. |
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Term
Up to how much of our body heat is radiated through our heads? |
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Definition
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Term
| Brain Size- Cranial Capacity |
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Definition
| average of 1545cc. Massive amount of Variation. 1250-1525 cc |
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Term
| Best info. on facial features comes from studying what? |
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Definition
| Bones & teeth. Diff. tissues developed for diff. environments. |
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Term
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Definition
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Term
Forward pertrusion of dental arches |
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Definition
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Term
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Definition
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Term
| attachment points for your muscles |
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Definition
| Zygomatic Arch, Brow Ridge |
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Term
| What adds extra strenth to front teeth? |
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Definition
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Term
| We cannot use teeth to do what |
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Definition
| Make ethnic classifications |
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Term
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Definition
| Cannot be used to classify race |
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Term
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Definition
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Term
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Definition
| Warms air when it is cold, nucosal membrane up to 1L a day. |
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Term
| Lungs require how much humidity? |
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Definition
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Term
| Dryer environments want what kind of nose? Desert & arctic regions |
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Definition
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Term
| eye color is represented by.... blue eyes/dark eyes |
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Definition
| malnin.. less melanin/more |
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Term
| What else controls eye color? |
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Definition
| Diff. gened on diff. foci |
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Term
| Further away from equator you are |
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Definition
| Taller you are on average |
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Term
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Definition
| 100% humidity, body doesn't need as many sweat glands. |
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Term
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Definition
| does not closely correlate with height. We tend to store fate in the same places. Socio-economic factors are more relevant. But it does correlate to mean air temp. |
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Term
| Humans need a body temperature of: |
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Definition
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Term
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Definition
| Basal Metabolic Rate- lowest rate of bio-chemical activity consistent with life |
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Term
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Definition
| No eating for 12-24 hrs and remain still |
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Term
| Forms of thermal regulation |
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Definition
| 1) thickness- some ppl are "thicker" than others. 2)subcutaneous circulation. the contraction and subtraction of blood vessels in the dermis to either cool or warm you. When blood vessels are smaller, they are warming you up. |
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Term
| Outside temp is most comforable in what. |
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Definition
| 77-80.6 degrees farenheit. |
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Term
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Definition
| 1)Heat loss is proportional to the body surface and to the difference between the bodies air temperature and the temperature of the environment. 2) Heat loss in a body is inversely proportional to the thickness of the shell. Body's surface area to weight is important. |
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Term
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Definition
| Populations in colder regions of a species range, tend to be thicker and heavier than their warmer region counterparts and vice versa |
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Term
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Definition
| Protuding body parts tend to be shorter at the colder end of species range and vice versa |
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Term
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Definition
| People of rainforest environments have the adaptation that they will sweat less in humid environments. Aborigines also have the capacity to drink larger volumes of water. 1 L in 17 seconds. We would have to pee asap. Europeans take a 1:40 to down the same amount. Ppl adapted to warmer environments sweat out less salts. |
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Term
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Definition
| Dif. than adaptation. short terms. Adaptation happens through several generations. We all have the ability to acclimate, Behavior is also important to this. |
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Term
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Definition
| Always lived in warmer environments but not colder. We have had to adapt. For ex. coats, fire, high proteins. |
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