Integumentary Review
Quiz by Jennifer Cauthers
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27 questions
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- Q1outermost protective shield composed of layers of epithelial cellsEpidermis30s
- Q2makes up bulk of the skin, strong & flexible, tough leathery layer of dense connective tissuedermis30s
- Q3subcutaneous tissue just deep to the skin sharing some of the skins protective functionshypodermis30s
- Q4most superficial layer; 20-30 layers of dead cells, essentially flat membranous sacs filled with keratin. Glycolipids in extracellular space.stratum corneum30s
- Q5epidermal layer absent in thin skin; 2-3 layers of clear, flat, dead, keratinocytes with indistinct boundaries.stratum lucidum30s
- Q6typically one to 5 layers of flattened cells, organelles deteriorating ; cytoplasm full of lamellar granules (releasing lipids) and keratohyaline granules.stratum granulosum30s
- Q7Several layers of keratinocytes unified by desmosomes. Cells contain thick bundles of intermediate filaments made of pre-keratin.stratum spinosum30s
- Q8deepest epidermal layer; one row actively mitotic stem cells; some newly formed cells becoming part of more superficial layers. See occasional melanocytes and dendritic cells. AKA - stratum germanitivumstratum basale30s
- Q9located in epidermis, chief role is producing keratin, majority of edipermal cellskeratinocytes30s
- Q10spider shaped epithelial cells that synthesize melanin, found in deepest layer of epidermismelanocytes30s
- Q11arise from bone marrow to migrate to epidermis, ingest foreign substances and key activators of immune system, aka Langerhans celldendritic cells30s
- Q12a sensory receptor for touch in the epidermis, present at epidermal junction shaped like a spiky hemisphere, and associated with a disc-like nerve ending.tactile cells30s
- Q13fibrous protein that gives epidermis protective propertieskeratin30s
- Q14cells junctions that are "like velcro" connecting cells and producing a tension-resisting network.desmosomes30s
- Q15made in skin, polymer of tyrosine amino acids; forms a pigment shield on the sunny-side of keratinocytes that protects from UV radiation.melanin30s