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Re: [HAPS-L] Skin--never leave home without it!
Hey Karen Thanks!
You bring up a great topic of trivia criminals and the
lengths they've gone to trying to alter/eliminate
their finger prints!
And we also do a Girls' Science Day so I'll remember
the fingerprinting as a possibility!
Teri
> I use the skin in a Science Day that our university
> gives every
> semester for the brownies/girl scouts. All the
> sciences at the
> University present a hands-on workshop to get girls
> interested in the
> sciences and engineering.
>
> I discuss the make-up of the skin and have them do
> their fingerprints
> using the graphite from a pencil, tape, magnifying
> glasses, etc.
> Identifying loops, whorls, and arches is what do; no
> time to work out
> the total ridge count.
> They love it!
>
>
> Karen McMahon
> Biological Science
> The University of Tulsa
> 600 S. College Ave.
> Tulsa OK 74104
> 918 631-3129
> FAX 918 631- 2762
> David Evans wrote:
>
>> RE: Skin as an organ system of excretion
>>
>> This may just be an urban legend but supposedly in
>> the pre-air
>> conditioning days, in the hot cities of the
>> Southwest and Southern
>> California, water use rose clearly as the
>> temperatures declined. Why?
>> Everyone started urinating more and started flushing
>> their toilets after
>> they stopped sweating so much. I do not know of any
>> data to support this
>> though.
>>
>> -----Original Message-----
>> From: HAPS-L-owner@xxxxxxxxxxx
>> [mailto:HAPS-L-owner@xxxxxxxxxxx] On
>> Behalf Of Debby Machuca
>> Sent: Tuesday, March 20, 2007 6:40 PM
>> To: HAPS-L@xxxxxxxxxxx
>> Subject: Re: [HAPS-L] Skin--never leave home without
>> it!
>>
>> Robert and others
>>
>> Robert, I like your line up of topics.
>>
>> I am wondering if anyone teaches the skin as an
>> organ of elimination?
>>
>> Debby
>>
>> ----- Original Message -----
>> From: "Rawding, Robert S" <RAWDING001@xxxxxxxxxx>
>> To: <HAPS-L@xxxxxxxxxxx>
>> Sent: Tuesday, March 20, 2007 2:05 PM
>> Subject: RE: [HAPS-L] Skin--never leave home without
>> it!
>>
>>
>> HAPSters,
>>
>> I spend 2 lectures on the skin and I devote a lab to
>> its anatomy with
>> models and microscope slides, then examining skin
>> sensor function (from
>> the Marieb lab manual).
>>
>> These are the lecture topics I cover, with about 55
>> PowerPoint slides:
>>
>> -Skin factoids (surface area, etc.)
>> - Functions
>> - Anatomy - dermis, epidermis, (hypodermis); layers;
>> nerve endings;
>> blood vessels; sweat glands, apocrine glands, etc.
>> - Several H&E micrographs with structures all
>> identified
>> - Melanocytes, Langerhans cells
>> - Thin vs thick skin; goose bumps, perspiration &
>> reflexes
>> - Superficial and deep sensors
>> - Dermal ridges & fingerprints
>> - Sex differences in deposition of subcutaneous fat
>> - Collagen types/ Langer lines / striae / cellulite
>> - Lack of scarring from in utero surgery
>> - Hair types & distributions (lanugo, vellus,
>> terminal)
>> - Hair structure and growth cycles
>> - Hair color and texture
>> - Fingernail structure and physiology (zinc
>> deficiency = white spots on
>> nails, for example)
>> - Skin disorders overview (not all 1,400 or so of
>> them!), including
>> wheals, macules, nodules, etc.
>> - Sources of infections (bacterial / viral /fungal /
>> etc)
>> - Types of skin wounds / treatments & wound healing
>> - Embryonic hair and gland development
>> - Degrees of skin burns and the Rule of 9's;
>> treatments
>> - Skin cancers
>> - Miscellaneous (rosacea, port wine stains, comedos,
>> etc.)
>> - Tattoos and pigment removal
>>
>> Bob
>>
>>
>> -----Original Message-----
>> From: HAPS-L-owner@xxxxxxxxxxx
>> [mailto:HAPS-L-owner@xxxxxxxxxxx] On
>> Behalf Of David Evans
>> Sent: Tuesday, March 20, 2007 10:56 AM
>> To: HAPS-L@xxxxxxxxxxx
>> Subject: RE: [HAPS-L] Skin--never leave home without
>> it!
>>
>> The integument is the most neglected organ system,
>> compared to its
>> importance, in anatomy and physiology.
>>
>> -----Original Message-----
>> From: HAPS-L-owner@xxxxxxxxxxx
>> [mailto:HAPS-L-owner@xxxxxxxxxxx] On
>> Behalf Of Terry Meehan
>> Sent: Monday, March 19, 2007 9:40 PM
>> To: HAPS-L@xxxxxxxxxxx
>> Subject: Re: [HAPS-L] Skin--never leave home without
>> it!
>>
>> Why skin is dark to light: UV exposure; lower UV
>> results in selection
>> for lighter skin so enough UV reaches the cells to
>> make vitamin D & vit
>> D is needed for.... [ Over the last couple of
>> decades anthropologists
>> have made a good case with lots of evidence for skin
>> darkness being
>> dependent on latitude, adjusting for env. where
>> there's lots of UV/glare
>> despite latitude (snow, ice, sea, high altitude),
>> and of course, recent
>> migrations mixing it all up (at least the last
>> several thousand years).
>> ]
>>
>> Why are skin is "naked." Typical human skin has the
>> same density of
>> hairs as a chimp (our living sister species), but
>> our pelage is finer &
>> shorter.
>> Major hair reduction can almost for sure be
>> predicted to have occurred
>> at the onset of the genus Homo (2.4 mya), when the
>> brain greatly
>> enlarged--nervous tissue is very heat sensitive, and
>> we need to cool our
>> fat head; humans pay a great price for such an
>> elaborate cooling
>> system--in salt & water. [ It would be nice if
>> human kidneys were much
>> better at conserving water. #@!$$ ] As we sweated
>> more to cool a bigger
>> & bigger brain, can't have insulating hair--it
>> hinders evaporative
>> cooling--imagine trying to sweat through mom's fur
>> coat. Concomitantly
>> our hyopdermis is unusually thick all over--odd for
>> a terrestrial
>> mammal--it's compensating insulation for loss of fur
>> coat. [ I never
>> thought the "aquatic" ape hypothesis held any water.
>> ]
>>
>> There are other neato things about human skin,
>> including communicative,
>> sexual, & paedomorphic traits, but it's now dinner
>> time, and then a
>> shave to look younger & sexier. Although, for me,
>> by this decade, I
>> think it's too late for that...@#!$$%% Terry
>>
>> PS You could also go medical--things done to heal
>> it, etc. to show its
>> importance or even the purely cosmetic stuff.
>>
>> Here's my 201 skin ad:
>> Few organs are as accessible, large, varied in
>> function, & as
>> underappreciated. Your integument accounts for about
>> 7% of your total
>> body weight (11lbs for a 155lb person), making it
>> the largest organ of
>> the body (the liver comes in 2nd). It's about 20
>> square feet in surface
>> area and varies in thickness from 0.2mm-5mm. It's
>> continuously abused,
>> abraded, attacked by microorganisms, irradiated by
>> sunlight, & exposed
>> to chemicals. On average, one sheds 30lbs of
>> epidermis in a lifetime
>> and you get a new "coat" every 35-45 days. Of all
>> the systems, the
>> integument is the only one you see every day. It's
>> more comfortable &
>> durable than Lt.
>> Columbo's trench coat. The integument is highly
>> water resistant,
>> stretchable, washable, perma-press, self-repairable,
>> lasts a "lifetime,"
>> and its natural hair & tone colors always match, and
>> for the more
>> fashionably conscious, matches your clothes too.
>>
>> Why I could talk about human skin adaptations all
>> night...but I am a
>> diurnal primate...ha ha...
>>
>>
>>
>> --- Teri Trendler <tatrendler@xxxxxxxxxxxx> wrote:
>>
>>
>>>Hi all!
>>>
>>>How appropriate that as we draw near to Sunny "Sandy
>>> Eggo" I have a
>>>school wide "theme" that will be on display there
>>> and I'd like your
>>>creative help with.
>>>
>>>"The Pasadena Arts Council is pleased to announce
>>> the organization of
>>>Art & Ideas, a festival of the arts, sciences, and
>>> humanities in
>>>Pasadena and surrounding communities. The theme for
>>> Art & Ideas '07
>>>is "Skin".
>>>
>>>So as an A&P faculty member I've been asked what my
>>> division would
>>>offer for the above topic. My reply was if we want
>>> to really get
>>>"kids" interested we talk about piercings and
>>> tattoos...even have them
>>
>>
>>>demo'd. What I'm wondering is do any of you have
>>> ideas I can steal?
>>>lol I'd love to show those close-ups of the "bugs"
>>> that live on us
>>>for shock value but what else?
>>>
>>>Thanks!
>>>Teri
>>>
>>>
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>>
>>
>>
>> tjmeehan333@xxxxxxxxx 412-606-3996
>> Chatham College Buhl Hall
>> Woodland Rd
>> Pittsburgh PA 15232-9987
>>
>> Bucky: I'm not gonna say Satchel is stupid...but
>> that's only because I
>> can no longer hear his voice over the dueling
>> banjos.
>> - Get Fuzzy by Darby Conley
>>
>>
>>
>>
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To unsubscribe from HAPS-L,
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