Integumentary System: Skin Layers and Appendages
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Questions and Answers

What is the primary function of the skin?

  • Aiding in muscle movement
  • Protecting the body from the environment (correct)
  • Regulating blood sugar levels
  • Assisting in digestion
  • Which of the following is NOT a component of the skin?

  • Vitamins (correct)
  • Protein
  • Fats
  • Water
  • How many nerve endings are present in one inch of skin?

  • 1,000 (correct)
  • 100,000
  • 10,000
  • 100
  • What is the approximate percentage of total body weight that the skin typically accounts for?

    <p>15% to 20%</p> Signup and view all the answers

    Which layer of the skin acts as an insulator for maintaining body temperature?

    <p>Subcutaneous tissue</p> Signup and view all the answers

    What is the purpose of the skin appendages?

    <p>To perform sensory functions and thermoregulation</p> Signup and view all the answers

    What is the main function of the epidermis in the skin?

    <p>Makes new skin cells and provides a protective barrier</p> Signup and view all the answers

    Which protein is primarily responsible for forming the layers of the skin?

    <p>Keratin</p> Signup and view all the answers

    What is the main function of the dermis in the skin?

    <p>Supplies blood and keeps the skin in touch with the environment</p> Signup and view all the answers

    Which layer of the skin is also known as the subcutaneous layer?

    <p>Hypodermis</p> Signup and view all the answers

    What type of epithelium is the epidermis composed of?

    <p>Stratified squamous keratinized epithelium</p> Signup and view all the answers

    Which of the following does NOT describe a characteristic of the dermis?

    <p>Production of sweat by sweat glands</p> Signup and view all the answers

    What type of sensory receptor responds to pressure or vibration?

    <p>Mechanoreceptor</p> Signup and view all the answers

    Where are Meissner Corpuscles located?

    <p>Dermal papillae</p> Signup and view all the answers

    What is the specific function of Pacinian Corpuscles in the skin?

    <p>Sensitivity to vibration and pressure</p> Signup and view all the answers

    Which part of the body is NOT covered by hair?

    <p>Lips</p> Signup and view all the answers

    What does the hypodermis consist of?

    <p>Loose connective tissue</p> Signup and view all the answers

    What is the main function of the superficial fascia?

    <p>Binds the skin loosely to adjacent organs</p> Signup and view all the answers

    Which layer of the skin is described as the thick outermost layer of dead cells devoid of nuclei and organelles?

    <p>Stratum Corneum</p> Signup and view all the answers

    What is the primary type of cell found in the epidermis, constituting 90% of epidermal skin cells?

    <p>Keratinocytes</p> Signup and view all the answers

    Which cell type is responsible for the production of melanin pigment in the skin?

    <p>Melanocytes</p> Signup and view all the answers

    Which layer of the skin is described as a highly refractive zone seen only in very thick skin?

    <p>Stratum Lucidum</p> Signup and view all the answers

    Where are Langerhans cells located in the skin?

    <p>Reticular Layer</p> Signup and view all the answers

    What is the function of dermal papillae in the skin?

    <p>To increase adhesion between the epidermis and dermis</p> Signup and view all the answers

    What is the function of the hair papilla?

    <p>Provides a capillary network to sustain the hair follicle</p> Signup and view all the answers

    Which part of the nail is considered the hidden part of the nail?

    <p>Nail root</p> Signup and view all the answers

    What covers the nail root of a nail?

    <p>Eponychium</p> Signup and view all the answers

    Where are the matrix, medulla, and cortex located in a hair?

    <p>Hair bulb</p> Signup and view all the answers

    Which part of the hair covers the hair papilla?

    <p>Hair root</p> Signup and view all the answers

    What is the main component of nails?

    <p>Keratin</p> Signup and view all the answers

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