Whether your parts are fresh off the CNC or were on the road before you were in diapers, we can get them turning heads.
We have extensive experience polishing a diverse selection of makes, vintages, and metals. Here are a few samples of our work, both old and new.
Whether your parts are fresh off the CNC or were on the road before you were in diapers, we can get them turning heads.
We have extensive experience polishing a diverse selection of makes, vintages, and metals. Here are a few samples of our work, both old and new.
1. DDoo NNooww
• How many bones are in your body?
• What is the periosteum?
• What is the compact bone?
• What is spongy bone?
• What bone cell makes new bones?
• What is the difference between the
axial and appendicular skeleton?
• What does the pivot joint do?
3. OObbjjeeccttiivveess
• I will be able to describe the
role the integumentary system
plays in maintaining homeostasis
• I will be able to compare and
contrast melanin production as how
it relates to skin cancer and
Vitamin D production.
5. 44 TTyyppeess ooff TTiissssuuee iinn
tthhee SSkkiinn
• Epithelial: covers the surface of
the body
• Connective: tough and flexible
protein fibers
• Muscle: interacts with hairs to
respond to stimuli such as cold
and fright
• Nervous: allows us to detect
external stimuli (pain, pressure,
etc) ex. Hand on stove
6. VViiddeeoo ttiimmee
• http://www.youtube.com/watch?v=d-IJhAWrsm0
• A song about the integumentary system?
Almost as good as the cardiovascular
rap.. Almost.
• http://www.youtube.com/watch?v=Rz8KKPo71lY&feature=
8. LLaayyeerr 11:: EEppiiddeerrmmiiss
• Epidermis – outer layer of skin
• Upper epidermis:
• 23-30 layers of dead flattened skin
ex. Dust that you sweep up is mostly made of
DEAD skin cells.
• Contains keratin which gives skin flexibility
Upper Epidermis
9. LLaayyeerr 11:: EEppiiddeerrmmiiss
• Lower epidermis: living cells to
replace upper epidermis
• Contain Melanin
• Every 28 days you have new skin!
Lower Epidermis
10. MMeellaanniinn
M elanin: compounds
of pigment (dye)
that colors and
protects the skin
from sun damage.
Vitilligo: White
appears due to
loss of pigment
Winnie Brown
ANTM.
11. MMeellaanniinn
• Melanin blocks UV light
• People who have large
amounts of melanin (darker
skin) are less likely to
get skin cancer
• People who have low amounts
of melanin (lighter skin)
are likely to produce more
Vitamin D
13. LLaayyeerr 22:: DDeerrmmiiss
• Dermis – Contains organs like blood vessels,
nerve endings, hair follicles and oil and
sweat glands.
• Thicker than epidermis (Ex. Thicker on your
feet)
• Oil Glands: prevents hair from drying out
and keeps skin soft.
Dermis
14. LLaayyeerr 22:: IInnnneerr ddeerrmmiiss
• Sweat glands – produce and release sweat to
help cool you down.
• Fun Fact: Average human produces 900
millimeters of sweat a day. Is that a lot?
What would change this average?
• Hair follicles: narrow cavities out of which
hair grows
Sweat Gland
15. LLaayyeerr 22:: DDeerrmmiiss
• Nerve tissue –sense stimuli (like
touch) to give you information about
your environment.
Nerve ending
16. AA uusseelleessss MMuussccllee??
• Erector Pili: its a smooth muscle
that causes hairs to stand up.
(goosebumps)
• In animals it acts as a layer of
insulation because oxygen becomes
trapped in the raised hairs,
insulating body heat. Animals
also trigger it to have hair
stand up to look bigger and mean.
• What about humans? We dont have
enough hair for it to work as an
animal.
18. TThhiinnkk--PPaaiirr--SShhaarree
• Thinking about the different
parts and functions of the
nervous system, how might the
integumentary system maintain
homeostasis?
• Jot your answer in the think-pair-
share box then when
instructed talk to a neighbor
about your answer
19. IInntteegguummeennttaarryy
SSyysstteemm
The skin maintains homeostasis by:
1. Controlling body temperature
2. Protection of organs
3. Producing Vitamin D
4. Sensing different stimuli
Largest organ in the body! Accounts for 16% of a person’s body weight
No blood vessels here which is why if you get a small scratch- you don’t bleed.
Vi
Oil glands also prohibit bacteria growth. In the diagram it is called the sebaceous gland (extra credit). To save heat. Blood vessels narrow. On hot days, blood vessels get bigger to increase heat loss.
Heat from skin causes evaporation.
Lets say you were running- ahhh you fell. What happens now? 1. you scream 2. you bleed (blood flows to wound until clot forms) why do we want a clot? 3. form a scab. Scab is a barrier between bacteria and tissues 4. New skin cells divide and that damaged tissue is replaced with new skin cells.
Produces Vitamin D when exposed to light. Helps the blood to absorb calcium.
Sends signals to the brain. Brain says woah, that’s hot, cold, or someone hit me. Functions as a sense organ.