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___________ glands…
• _________ ______ glands
• _________ ______ glands
Abundant & widespread, mostly H2O, ducts to surface of skin, myoepithelial cells.
Less abundant, found in ______, _____, _____ regions (& faces of men), > conc. Of ______ ______, bacteria breakdown cause rancid smell, ducts to hair follicles.
BIOL 2010 Human Anatomy & Physiology IBIOL 2010 Human Anatomy & Physiology I
What type of glands are in the skin?
__________ glands…
Secrete _________ (oily substance) often into hair follicle (holocrine glands).
Other glands…
____________
____________
What type of glands are in the skin?
Anatomy:_______________
Growth from ________!
Above skinSkin - to matrix
Matrix to papilla
What’s all the fuzz about?
Fetus & newborns
Fine unpigmented hair
Coarse pigmented hair
Types:_______
_______
_______
Texture:Straight
Wavy
Kinky
_________ in cross-section
_________ in cross-section
_________ in cross-section
Colors:
Blonde - Black
Red
White
Varying amounts of _______
___________ pigment
No melanin, ____ in medulla
What’s all the fuzz about?
Predict #3 - pg. 146Marie Antoinette’s hair supposedly turned white overnight after she heard she would be sent to the guillotine.
Explain why you believe or disbelieve this story!
Take 5!!!
Discuss with your neighbor and predict
an answer.
Growth also from ________ and also comprised of dead epithelial cells and _______ _______
What portion of the nail would a physician have to remove to eliminate the nail?
Let’s nail down the anatomy!
Caused by:
__________
____________
• Group of pigments (black, brown, yellowish, or reddish).
• Produced by __________
____________
• O2 transporting molecule in blood (__ makes it red)
• Yellow/orange pigment
What causes differences in skin color?
Abnormal skin
colorations:
•________
•________
•________
•________
•________
Cyan = blue
Pallo = sway
Albi = white
Eryth = red
What about abnormal skin colorations?
Burns are ranked based on the severity and the depth of tissue destruction.1st degree:____________ damaged ~red & painful, NO blisters
2nd degree:_________ & some _______ damaged ~red, white or tan, very painful, BLISTERS present
3rd degree (full thickness)_____ _______ ___________ ~black, NO pain, NO blisters
Why are burns some of the most painful injuries?
Have you ever wondered how they measure % of body burned?
They use the rule of 9s.
9
+9 = 189
18 + 18 = 36
18 +18 = 36
1
= 100%
How do you determine the extent of a burn?
_______ _____ forms (we’ll discuss later)
Variety of new cells _________ to damaged area
____________divide rapidly and ________ invade tissue
_______ replaced with other fibers
How do skin wounds heal?
1 2
3 4
Types are identified based on the type of cells that mutate:_____ ___ carcinoma
Least dangerous, start as “shiny” bump, center becomes concave and ulcerus _________ ___ carcinoma
___________
Raised, red, “scaly” & ulcerus, can metastasize
Dark, flat, irregular, most deadly
Is all skin cancer equally dangerous?
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