The Skin
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Questions and Answers

Which of the following is the largest organ of the body by weight and volume?

  • Skin (correct)
  • Lungs
  • Heart
  • Liver
  • What are the functions of the skin?

  • Protection, thermoregulation, and prevention of dehydration (correct)
  • Digestion, respiration, and excretion
  • Sight, hearing, and taste
  • Coordination, balance, and movement
  • What is the main function of the integument?

  • To provide oxygen to the body
  • To protect internal tissues (correct)
  • To regulate body temperature
  • To produce blood cells
  • What are the two distinct regions of the dermis?

    <p>Papillary dermis and reticular dermis</p> Signup and view all the answers

    Which of the following is not an accessory structure of the dermis?

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

    What is the function of Langerhans cells in the epidermis?

    <p>Immune response</p> Signup and view all the answers

    Which layer of the epidermis is responsible for the production of melanin?

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

    What is the function of sebaceous glands in the skin?

    <p>Production of oil</p> Signup and view all the answers

    Which of the following is not a sensation monitored by the skin?

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

    What is the main function of the epidermis?

    <p>To serve as a barrier</p> Signup and view all the answers

    Which type of glands are typically associated with hair follicles and secrete sebum into a hair follicle?

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

    What is the function of arrector pili muscles?

    <p>Stand the hair up in response to cold or fear</p> Signup and view all the answers

    Where are eccrine sweat glands found?

    <p>Both thick and thin skin</p> Signup and view all the answers

    Which cells help push secretory products into and along the lumen?

    <p>Myoepithelial cells</p> Signup and view all the answers

    Which type of sweat glands have larger lumens compared to eccrine sweat glands?

    <p>Apocrine sweat glands</p> Signup and view all the answers

    What is the name of the structure formed at the basal region of the hair follicle?

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

    Which part of the hair follicle contains capillaries and nerve fibers that supply the hair follicle?

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

    What is the outermost layer of the hair shaft called?

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

    Where is the eponychium located?

    <p>Junction zone between skin of the finger and nail plate</p> Signup and view all the answers

    What is the function of the perionychium?

    <p>Protect the nail plate</p> Signup and view all the answers

    Which layer of the epidermis is composed of flattened cells with keratohyalin granules in their cytoplasm?

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

    Which layer of the epidermis contains numerous flattened cells that are filled with keratin and lack organelles and nuclei?

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

    Which layer of the epidermis is the deepest and composed of a single layer of cuboidal cells, including stem cells?

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

    Which layer of the epidermis is typically the thickest and consists of interconnected cells with numerous desmosomes?

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

    Which layer of the epidermis is responsible for producing melanin?

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

    Which layer of the epidermis contains sensory receptor cells that respond to light touch stimuli and for sensing an object's texture?

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

    Which layer of the skin is composed of loose connective tissue and is located deep to the epidermis?

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

    Which layer of the skin is responsible for preventing water loss and the entry of pathogens?

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

    Which layer of the skin is located deep to the dermis and contains loose connective tissue, adipose tissue, nerves, and arteries?

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

    What is the function of Meissner corpuscles in the skin?

    <p>Responsible for discriminative touch</p> Signup and view all the answers

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