Structure of Skin Layers

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Questions and Answers

What is the main function of the dermal papillae in the skin?

  • Act as the receptive site for tattoos
  • Secrete sebum to keep the skin soft
  • Produce sweat and oil glands
  • Contain capillary loops that nourish the epidermis (correct)

Which type of receptors are found in the reticular layer of the dermis?

  • Heat receptors
  • Muscle receptors
  • Pain receptors
  • Touch receptors (correct)

What is the main component of the reticular layer of the dermis?

  • Hair follicles and arrector pili muscles
  • Blood vessels and nerve fibers
  • Collagen and reticular fibers (correct)
  • Sebum and sweat glands

Which structure in the dermis is responsible for sensitivity to vibration and pressure?

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

What is the function of Sebaceous glands in the skin?

<p>Produce sebum to keep the skin soft and kill bacteria (C)</p> Signup and view all the answers

Which glands are numerous in the face but not present in palms and soles?

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

Which layer of the skin is composed of collagen and elastic fibers for strength and flexibility?

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

Which layer of the skin contains abundant touch receptors?

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

What is the main function of the stratum basale?

<p>Actively dividing cells to replace shed-off cells (B)</p> Signup and view all the answers

Which layer of the skin is defined as both the stratum basale and stratum spinosum as a unit?

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

Which type of cell produces the tough fibrous protein keratin in the skin?

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

What is the main function of Langerhans cells in the skin?

<p>Macrophage-like immune cells (A)</p> Signup and view all the answers

Which layer of the skin is the most superficial?

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

Which layer of the skin is avascular?

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

Which layer of the skin is composed of stratified epithelium?

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

Which layer of the skin is associated with vitamin D synthesis?

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

Which layer of the skin is responsible for prevention of excessive body fluid loss?

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

Where do the epidermal cells get nourished from?

<p>Blood vessels in dermis (D)</p> Signup and view all the answers

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