Skin and Its Accessory Structures

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Questions and Answers

Which region of the skin is responsible for the production of melanin?

  • Stratum corneum
  • Papillary region
  • Stratum basale (correct)
  • Reticular region

What is the main function of keratinocytes?

  • Produce fibrous protein
  • Produce keratin (correct)
  • Produce melanin
  • Produce lamellar granules

Which type of cells are most abundant in the skin?

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

Where are Langerhans cells primarily located in the epidermis?

<p>Stratum spinosum (A)</p> Signup and view all the answers

What is the function of Merkel cells in the skin?

<p>Provide tactile sensations (D)</p> Signup and view all the answers

Which layer of the epidermis is responsible for continuous renewal of cells?

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

What is the main function of melanin in the skin?

<p>Protection against UV light (B)</p> Signup and view all the answers

Where are melanin granules transferred to keratinocytes from?

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

What is the main function of lamellar granules produced by keratinocytes?

<p>Water repellency (A)</p> Signup and view all the answers

Which region of the skin contains immune cells known as Langerhans cells?

<p>Stratum spinosum (A)</p> Signup and view all the answers

Which of the following is NOT an accessory structure of the skin?

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

What is the function of the skin?

<p>All of the above (D)</p> Signup and view all the answers

Which layer of the skin is responsible for energy storage and physical protection?

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

What is the pH of the skin?

<p>5.5 (B)</p> Signup and view all the answers

Which of the following is NOT a layer of the skin?

<p>Adipose tissue (B)</p> Signup and view all the answers

What is the largest organ in the body?

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

What is the main function of the epidermis?

<p>To provide physical protection (C)</p> Signup and view all the answers

What is the main function of the dermis?

<p>To sense changes in the environment (D)</p> Signup and view all the answers

What is the role of melanin in the skin?

<p>To determine skin color (C)</p> Signup and view all the answers

What is the purpose of the hypodermis or subcutaneous tissue?

<p>To store energy (C)</p> Signup and view all the answers

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