Integumentary System Overview

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Questions and Answers

Which layer of the epidermis is responsible for producing keratin?

  • Stratum basale
  • Stratum corneum
  • Stratum lucidum
  • Stratum granulosum (correct)

Which type of cells in the epidermis are responsible for producing melanin?

  • Melanocytes (correct)
  • Keratinocytes
  • Langerhans’ cells
  • Merkel cells

Which layer of the dermis contains small projections called papillae?

  • Stratum spinosum
  • Stratum basale
  • Papillary layer (correct)
  • Reticular layer

What is the innermost layer of the dermis primarily made up of?

<p>Collagen fibers (A)</p> Signup and view all the answers

What protein is hair primarily made up of?

<p>Keratin (D)</p> Signup and view all the answers

What structure protects the tips of the fingers and toes from injury?

<p>Nails (C)</p> Signup and view all the answers

What are the main skin appendages of the integumentary system?

<p>Nails, hair follicles, sebaceous glands, and sweat glands (A)</p> Signup and view all the answers

Which cells in the skin play roles in the cutaneous immune response?

<p>Langerhans cells (C)</p> Signup and view all the answers

What is one of the functions of the integumentary system related to thermoregulation?

<p>Regulating body temperature (B)</p> Signup and view all the answers

Which layer of the skin is responsible for the production of vitamin D?

<p>Epidermis (C)</p> Signup and view all the answers

What percentage of the total body weight does the skin represent?

<p>~16% (A)</p> Signup and view all the answers

Which part of the skin is impermeable to water and aids in the prevention of dehydration?

<p>Epidermis (C)</p> Signup and view all the answers

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