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37 Cards in this Set
- Front
- Back
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ORGAN |
2 or more tissues grouped together to perform particular function |
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Integumentary = skin |
Largest organ in the body |
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Integumentary system |
Skin, hair, nails, and glands |
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How many layers does the epidermis have? |
4-5 layers |
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How many layers in the epidermis? |
2 layers |
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How many layers in the hypodermis/subcutaneous/superficial fascia? |
1 layer. Not part of skin. It's under Dermis |
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Layer that does not have blood vessels |
Outer most layer of keratinized stratified squamous epithelium |
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Melanocytes |
Produces melanin (brown pigment) |
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Merkel cells |
Touch receptor |
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LangerHans cells |
Immune cells |
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Hemoglobin |
Pink from underlying vessels |
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Carotene |
Yellowish pigment |
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Freckles |
Patches of melanin |
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Moles |
Clusters of melanocytes |
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Albinism |
Genetic defect . Can't produce melanin |
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Vitiligo |
Melanocytes destroyed by autoimmune disease |
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Meissner's corpuscles |
Touch receptor |
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Age spots |
Places where melanocytes increase production |
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Papilla |
Blood vessels nourish hair |
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Matrix |
Where growth takes place |
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Medulla |
Inner layer of air spaces and pigments |
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Cortex |
Middle layer of packed cells with pigments |
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Cuticle |
Single layer of cells that overlap like shingles |
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Name all Cells of epidermis |
Melanocytes, Merkel cells, LangerHans cells and Keratinocytes |
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How many layers in Stratum basale |
Single layer |
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Layers in Stratum spinosum |
8-10 layers held by desmosomes |
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Explain Stratum basale |
Deepest layer, single layer and constantly dividing germinal layer |
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Explain Stratum spinosum |
8-10 layers held my desmosomes. Spiny looking cells |
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Explain Stratum Granulosum |
3-5layers . Granular looking cells full of preheating molecules. Cells begin to keratinized and organelles begin to degenerate |
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Explain Stratum lucidum |
Several layers clear appearance only in thick skin which is hairless |
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Explain Stratum Corneum |
25-30 layers of dead flat keratinized cells. Waterproofs and strengthens skin |
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Layers of the Dermis |
Papillary and Riticular layer |
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Explain Hypodermis |
Made up of loose areolar CT and Adipose. Binds to organs below.. hypodermic Injections made here |
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What is the function of hair |
Protection warmth and reduces friction |
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What does a hair follicle contain |
Oil gland arrestor piling and hair root plexus |
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Function of nails |
Protect digits grant objects |
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Structure of nails |
Modified stratified corneum |
