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Waterproofing protien of the skin
Keratin
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Hair is keratin that has weathered & long blown
Fibros Form
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-Top most laer of Epidermis.
-All cells are dead bags full of the protein in keratin
Stratum Corneum
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-Only found on the palm/sole
-Where there is loose skin
Stratum Lucidum
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-Where the cells begin to deposit craniuls of keratin in cytoplasm.
-Called "Karatinasation"
Stratum Granilosum
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-Cells are beginning to eject the water inside as well as the organelles are leaving.
-Cell becoming "spiny like"
Stratum Spinosum
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Highly Mitotic, never stop dividing, always in mitosis, have cubed shape.
-Malanocytes live in this layer
Stratum Germinativum/Bosalo
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All accessory organs of the skin is in the _______?
Dermis
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Hair Follicle, Arrector Pili Muscle, Hair shaft, Sudoriferous Glands, Blood vessel, Sebaceous Glands, Hair root, Free Nerve endings, Hair papillae. <-- These are found in ______?
Dermis
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-Cerumin earwax
-Traps anything that gets in the ears
Ceruminous Glands
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Fingerprints
Dermal Papillae
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5 Cutaneous Senses
- Hot,
- Cold,
- Touch,
- Pain,
- Pressure
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Pigment produced by melocytes
Melanin
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2 types of melanin
- 1. EuMelanin
- 2. PheMelanin
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-Black/Brown Pigment
-Abundant on AfricanAm Pop & Southeast Asians
EuMelanin
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-Red/Yellow Pigment
-Abundant in Caucasian/ White/ Europe
PheMelanin
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3 Factors that controls skin tones
- 1. Melanins
- 2. Carotene
- 3. Hemaglotin
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Orange/ Yellow Pigments in Asian Population
Carotene
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-Protein that can subtly change the skin tone to a reddish/Flushed apperance
Hemaglotin
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-Due to abnormal bone matrix formation
-Bone softening
"Richets" (Osteomalacia)
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2 Causes of richets?
- 1. ^ use of sunscreen in children < 1yrs
- 2. ^ use of breast feeding, however breast milk has "0" vitamin D
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Muscle attaced to the hair follicle is known as the ____ ____ muscle
Arrector Dili
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Body's first line of defense is formed by the _______ ?
Stratum Corneum
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Name given to glands found in the ear canal
Ceruminous
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