Hair and Hair Follicles Anatomy
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Questions and Answers

What is the function of melanocytes in the skin?

  • Produce sweat
  • Produce keratin
  • Produce color pigment (correct)
  • Produce sebum
  • Which of the following layers of the hair shaft produces the hair?

  • Hair follicle
  • Hair matrix cells (correct)
  • Outer cuticle
  • Inner medulla
  • What is the thickened region of the stratum corneum beneath the free edge of a nail called?

  • Hyponychium (correct)
  • Cuticle
  • Nail root
  • Eponychium
  • Which skin cell type is responsible for resisting invasion by microbes?

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

    Which term refers to the smooth muscle bundle that contracts to raise hair?

    <p>Arrector pili muscle</p> Signup and view all the answers

    What is the outermost layer of the hair shaft called?

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

    Which part of the nail is responsible for producing new growth?

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

    What skin function is related to protection against microbes, heat, and chemicals?

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

    What skin function relates to aiding in the absorption of calcium and synthesis of vitamin D?

    <p>Synthesis of Vitamin D</p> Signup and view all the answers

    Which layer of the skin contains Langerhans cells and which layer contains macrophages that protect against infection?

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

    Which layer of the epidermis is responsible for producing keratohyaline granules that help in keratin formation?

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

    What is the function of melanocytes in the skin?

    <p>Produce melanin</p> Signup and view all the answers

    Which layer of the epidermis contains a few rows of clear, flat dead keratinocytes and is only present in thick skin?

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

    Which pigment found in plants accumulates in the stratum corneum and hypodermis of the skin?

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

    Which layer of the dermis contains projections that indent the epidermis and contain capillary loops and touch receptors?

    <p>Papillary layer</p> Signup and view all the answers

    What is the main function of sebaceous glands in the skin?

    <p>Produce oils to moisturize the skin</p> Signup and view all the answers

    Which type of sweat glands are mostly abundant on the palms of hands, soles of feet, and forehead?

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

    What is the main function of keratinocytes in the epidermis?

    <p>Produce keratin for skin barrier function</p> Signup and view all the answers

    'Lines of cleavage' in the skin are formed by bundles of which fibers in the dermis?

    <p>Collagen fibers</p> Signup and view all the answers

    Where are Langerhans' cells found in the epidermis?

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

    Which layer of the skin is composed of fibrous connective tissue and is vascularized?

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

    Which cell type in the epidermis produces the fibrous protein keratin and is tightly connected by desmosomes?

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

    Where are melanocytes located in the skin?

    <p>In the stratum basale</p> Signup and view all the answers

    What is the function of melanin produced by melanocytes in the skin?

    <p>Protect cell nucleus from UV radiation</p> Signup and view all the answers

    Which region is mostly adipose with some areolar connective tissue, insulates, absorbs shocks, and anchors the skin loosely to muscles?

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

    In which layer of the epidermis are Langerhans' cells located?

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

    Which cell type in the epidermis forms a network around keratinocytes and is part of the immune system?

    <p>Langerhans' cells</p> Signup and view all the answers

    Which layer of the epidermis contains mostly dead and keratinized cells?

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

    "Basal cells migrate to bridge gaps in broken tissue" is a process that occurs primarily in which layer of the skin?

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

    Which skin cell type is responsible for producing collagen fibers to fill gaps during wound healing?

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

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