Lab TimeDate 4a 4-20-201 The Integumentary System Basic Structure of the Skin .

Question

Lab TimeDate 4a 4-20-201 The Integumentary System Basic Structure of the Skin . Complene the following statements bhy wrising the approgeiate word or phrase on the conespondingty muhered ank connect,ve tissue-which makes up the alermis, and _1_ which fonn· the called 2 The pigments melanin and.3 conribute to skin codox. A localized The two basic tissues of which the skin is composed are dense irregular 3. concentration of melanin is referned to as a4 Fur protective functions of the skin are d. 3. Using the key choices, choose all responses that apply to the following descriptions. Some terms are used more than or d. stratum lucidum e. stratum spinosum f. papillary layer g. h. i. reticular layer epidermis as a whole dermis as a whole Key: a. stratum basale h. stratum corneum c stratum granulosum layer of translucent cells in thick skin containing dead keratinocytes 2. two layers containing dead cells 3. dermal layer responsible for fingerprints 4. vascular region of the skin 5. major skin area as a whole that produces derivatives (nails and hair) 1. _ 6. epidermal layer exhibiting the most rapid cell division 7. layer including scalelike dead cells, full of keratin, that constantly slough off layer of mitotic has abundant elastic and collagenic fibers location of melanocytes and tactile (Merkel) cells 8, cells filled with intermediate filaments 9. __ 10. -11. area where weblike pre-keratin filaments first appear 12. layer of areolar connective tissue

Explanation / Answer

The two basic tissues of which skin is composed are dense connective tissue, which makes up the dermis, and 1.stratified squamous epithelium, which forms the epidermis are 2. keratinocytes. the protein 3.keratin makes the dermis tough and leather like. the specialized cells that produce the pigments that contribute to skin color are called 4.melanocytes .

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