Cricks Epidermis Vocabulary
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Name the 4 kinds of epidermal cells | Keratinocytes, Melanocytes, Langerhans, Merkel
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| What are 3 key features of Keratinocytes? | They are 90% of all epi cells, they produce keratin, they produce lamellar granules
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| What are the key feature of Melanocytes? | they produce Melanin
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| What are the key features of Langerhans? | they are part of the immune system, are easily damaged by UV light.
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| What are the key features of Merkel Cells | detection of sense and touch
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| What are the 5 layers of the epidermis | stratum basale,stratum spinosum, stratum granulosum, stratum lucidum, stratum corneum,
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| What are 3 key features of the stratum basale? | 1) single layer of keratinocytes 2) some are stem cells 3) can be replaced by transplant
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| What is the key feature of the stratum spinosum? | 1) multiple layers of keratinocytes
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| What are 3 key features of the stratum granulosum? | 1) multi layered 2) apoptosis happens here 3) lamellare granules found here
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| What is the role done by lamellar granules? | they waterproof the skin
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| What are 3 key features of the stratum lucidum? | 1) found only in thickened areas of the skin 2) make of dead keratinocytes 3) lots of keratin
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| What are 3 key features of the stratum corneum? | 1) made of dead cells 2) they slough off, replaced by cells from deeper 3) callouses form here
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| What skin disorder is caused by keratinoytes dividing too quickly, resulting in a buildup of skin cells? | Psoriasis
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