Skin structure and function Practice Guide With Questions And Accurate Answers.
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Course
SKIN.
Institution
SKIN.
Two names for the skin - correct answer Integument or cutaneous membrane
Epidermis - correct answer the outer layer of the skin composed of epithelial tissue
Dermis - correct answer ...
Skin structure and function
Two names for the skin - correct answer Integument or cutaneous membrane
Epidermis - correct answer the outer layer of the skin composed of epithelial tissue
Dermis - correct answer the connective tissue layer that is firmly attached to the epidermis by a basement membrane; connects epidermis to the underlying hypodermis
Hypodermis/ subcutaneous layer - correct answer Located below the skin and is usually discussed with the skin. The major storage site for adipose tissue
Keratinized stratified squamous epithelium - correct answer A very thick epithelial layer in the epidermis
Keratinocytes - correct answer comprised of 90% of the cells of the epidermis and produce keratin, a tough fibrous protein that protects the skin and deeper tissues from chemicals, microbes, and heat
Melanocytes - correct answer comprised of 8% of the epidermal cells and produce and secrete melanin
Langerhan cells - correct answer immune system cells that attack pathogens that enter the skin
Merkel cells - correct answer the least abundant cell type and are found only in the deepest layer of the epidermis. Function as touch receptors and are associated with sensory neurons Stratum Basale (BLGSC) - correct answer Also known as the stratum germinativum...a single row of cells attached to the basement membrane, contains stem cells that divide
to form new keratinocytes. - undergoes keratinization
Stratum spinosum (BSGLC) - correct answer contains 8 to 10 rows of cells, mainly kertainocytes. has thorn-like projections caused by the tissue preparation process
Stratum granulosum (BSGLC) - correct answer the layer that contains 3 to 5 rows of flattened keratinocytes that are beginning to die. No cell division present in this layer
Stratum lucidum (BSGLC) - correct answer contains 3 to 5 rows of flat, dead keratinocytes. Translucent in specimens of fresh skin, but in prepared slides it may be clear or stained
Stratum Corneum (BSGLC) - correct answer A very thick layer containing 25 to 30 or more rows of dead, squamous-shaped keratinocytes. Tough and water-repellant.
Thick skin - correct answer Found on the palms of the hands and the soles of the feet and has all five strata
Thin skin - correct answer covers the rest of the body, does not have a visible stratum lucidum and has a thinner stratum corneum than thick skin.
Papillary region - correct answer A thin layer in the dermis of areolar connective tissue that is deep to the stratum basale of the epidermis and the basement membrane.
Dermal papillae - correct answer Finger-like projections of the papillary region that extend into the epidermis.
Epidermal ridges - correct answer Present in the palms, fingers, soles, and toes. Increase surface area, frication, and grip
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