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D170 W15 Integument Williams
What are the five functions of the skin (integument)?
Label the following structures:
The Epidermis: Describe the basics of each layer, using the appropriate key words.
Stratum basale
Stratum spinosum
Stratum granulosum
Stratum lucidum
Stratum corneum
Label the diagram of the epidermis:
The Dermis: Describe the basics of each layer, using the appropriate key words.
Dermis – papillary dermis
Dermis – reticular dermis
Hypodermis
What is the difference between thick skin and thin skin?
Describe the following types of epidermal and dermal modifications.
Epidermal (friction) ridges –
Cleavage lines –
Flexure lines –
Describe how the following pigments contribute to skin color:
Melanin –
Carotene –
Hemoglobin –
Summarize the description, function and distinguishing structures of the following skin appendages. Use the key words as listed at the end.
Nails
Hair
Hair follicles
Sebaceous glands
Eccrine sweat glands
Apocrine sweat glands
Key Words
EpidermisStratum corneumStratum granulosumStratum spinosumStratum lucidumStratum basaleKeratinocytesMelanocytesDendritic cellMelaninCaroteneHemoglobinCleavage linesFlexure linesEpidermal (friction) ridgesDermal papillaeDermisReticular dermisPapillary dermisHypodermisNailHard keratinSoft keratinNail matrixNail rootNail bedLunuleEponychiumHair folliceHair rootHair shaftDermal (hair) papillaHair matrixArrector pili muscleSebaceous glandSebumEccrine glandApocrine gland