Papillary Layer and Dermal Papillae Anatomy
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Questions and Answers

What is the main function of melanin in the integumentary system?

  • Protects against mechanical damage
  • Prevents passage of harmful agents
  • Acts as an insulator
  • Protects from UV rays (correct)

Which of the following skin appendages acts as an insulator and filter?

  • Sweat glands
  • Fingernails
  • Hair (correct)
  • Oil glands

What is the main function of sebum produced by the skin's glands?

  • Provides protection against UV rays
  • Acts as a moisturizer (correct)
  • Enhances sensation
  • Helps in thermoregulation

Which of the following is not a function of sweat produced by the skin?

<p>Prevents water loss (A)</p> Signup and view all the answers

Which receptors in the skin sense excessive pressure as pain?

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

What is the primary role of the acid mantle in the integumentary system?

<p>Kills most bacteria (D)</p> Signup and view all the answers

Where are the peglike projections called dermal papillae located?

<p>In the papillary layer (B)</p> Signup and view all the answers

Which type of receptors are found in the dermal papillae?

<p>Pain receptors (free nerve endings) (B)</p> Signup and view all the answers

What is the main function of epidermal dendritic cells?

<p>Alert and activate immune system cells (A)</p> Signup and view all the answers

Which skin appendage arises from the epidermis?

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

What is the primary role of phagocytes in the skin?

<p>Prevent bacteria from penetrating deeper into the body (A)</p> Signup and view all the answers

What is the main purpose of melanin in the skin?

<p>Provide protection from UV radiation (D)</p> Signup and view all the answers

What is the main function of collagen in the skin?

<p>Contributing to the toughness of the dermis (D)</p> Signup and view all the answers

Which skin receptor is primarily responsible for detecting light touch?

<p>Meissner's corpuscle (B)</p> Signup and view all the answers

Where are sebaceous glands NOT found on the body?

<p>Palms of the hands (D)</p> Signup and view all the answers

What is the main role of elastin in the skin?

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

Which type of cutaneous gland produces sebum?

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

Which skin appendage is primarily responsible for deep pressure sensation?

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

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