Advanced Skin Quiz

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This quiz contains 10 questions. Click below to begin.

Q1. What junction type connects keratinocytes in the epidermis?

  • Hemidesmosomes
  • Tight junctions
  • Desmosomes
  • Gap junctions

Q2. Which skin layer is primarily responsible for fingerprint patterns?

  • Stratum granulosum
  • Reticular dermis
  • Basement membrane
  • Papillary dermis

Q3. What role do Merkel cells play in the skin?

  • Produce melanin
  • Initiate immune response
  • Secrete sebum
  • Detect fine touch and pressure

Q4. Which immune cells are found in the dermis and not the epidermis?

  • Dermal dendritic cells
  • Merkel cells
  • Langerhans cells
  • Mast cells

Q5. Which fibers in the dermis provide elasticity to the skin?

  • Elastin
  • Keratin
  • Actin
  • Collagen

Q6. What structural layer anchors the epidermis to the dermis?

  • Stratum spinosum
  • Papillary dermis
  • Basement membrane
  • Stratum corneum

Q7. Which cells in the skin initiate delayed-type hypersensitivity reactions?

  • Fibroblasts
  • T cells
  • Keratinocytes
  • Langerhans cells

Q8. What is the primary difference between thick and thin skin?

  • Thin skin has no dermis
  • Thin skin has no sweat glands
  • Thick skin has stratum lucidum and lacks hair
  • Thick skin has melanocytes

Q9. What is the role of tight junctions in the epidermis?

  • Allow rapid ion exchange
  • Prevent paracellular water loss
  • Produce vitamin D
  • Anchor dermis to muscle

Q10. How do melanocytes transfer melanin to keratinocytes?

  • Via lymphatic drainage
  • Via melanosomes and dendritic extensions
  • Through tight junctions
  • By mitotic division
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