skin functions/layers of skin/skin cells
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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| what are the five functions of the skin | protection, vitamin d3 synthesis, excretion, sensation, temperature regulation
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| the epidermis is | upper layer, composed of stratified squamous epithelial tissue
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| stratum corneum | uppermost layer of the epidermis
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| stratum lucidum | "clear" layer found only in thick skin
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| stratum spinosum | appears spiny due to desmosomes
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| stratum basale | bottom layer, contains basal cells
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| dermis is composed of | papillary layer and reticular layer
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| papillary layer | upper layer = areolar connective tissue
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| reticular layer | lower layer = dense irregular connective tissue
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| hypodermis | (subcutaneous tissue, or superficial fascia)
= areolar and adipose connective tissue
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| [epidermal cell] Keratinocytes | produce keratin
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| [epidermal cell] melanocytes | produce melanin, packed in melanosomes
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| [epidermal cell] dendritic cells | defend against microorganisms and superficial skin cancers
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| [epidermal cell] Merkel cells [monitored by tactile discs): | touch sensation
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| [DERMAL CELLS AND FIBERS] collagen fibers | very strong
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| [DERMAL CELLS AND FIBERS] elastic fibers | permit stretching
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| [DERMAL CELLS AND FIBERS] lamellated corpuscles | sense deep pressure and vibration
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Created by:
btuehara
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