Collagen and Skin Layers
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Questions and Answers

Which type of sweat gland responds to environmental changes and is found on the neck, back, and forehead?

  • Melanocytes
  • Sebaceous glands
  • Apocrine glands
  • Eccrine glands (correct)
  • What is the function of sebum (skin oil)?

  • To protect from water loss (correct)
  • To decrease the amount of UV light that penetrates the skin
  • To attach to and make sweat
  • To produce pigments
  • Where are melanocytes found in the skin?

  • In the epidermis
  • In the stratum basale (correct)
  • In the dermis
  • In the subcutaneous layer
  • What is the main function of melanocytes?

    <p>To produce pigments and decrease UV light penetration</p> Signup and view all the answers

    Which type of melanin is produced by darker skinned and darker haired people?

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

    What is the main source of melanin production in the skin?

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

    Where are melanosomes arranged in the skin?

    <p>Around the nucleus of keratinocytes</p> Signup and view all the answers

    What is the purpose of melanosomes in the skin?

    <p>To protect the nucleus from UV radiation</p> Signup and view all the answers

    What accounts for variations in skin color among individuals?

    <p>The amount and type of melanin produced</p> Signup and view all the answers

    Which layer of the skin is responsible for sensory reception and temperature control?

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

    What is the function of collagen in the connective tissue?

    <p>Provides both flexibility and strength</p> Signup and view all the answers

    Which layer of the epidermis is composed of several layers of rough, flake-like dead cells?

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

    Which layer of the epidermis is absent in thin skin?

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

    What is the function of the subcutaneous tissue (hypodermis)?

    <p>Protects body heat</p> Signup and view all the answers

    Which layer of the skin is avascular, meaning it has no blood supply?

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

    What is the function of the stratum granulosum in the epidermis?

    <p>Contains keratohyalin granules</p> Signup and view all the answers

    Which layer of the epidermis is responsible for new cell production?

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

    What type of connective tissue is found in the subcutaneous tissue (hypodermis)?

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

    Which layer of the skin provides flexible strength to tissues?

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

    Which layer of the skin is responsible for producing sweat and sebum?

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

    Which layer of the skin is thicker and deeper, also known as the 'true skin'?

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

    Which layer of the skin is avascular, meaning it lacks a blood supply?

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

    What type of tissue is the subcutaneous tissue (hypodermis) made of?

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

    Which layer of the epidermis is responsible for new cell production?

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

    Which layer of the epidermis is composed of several layers of rough, flake-like dead cells?

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

    Where are melanosomes arranged in the skin?

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

    What is the function of collagen in the connective tissue?

    <p>Provides flexible strength to tissues</p> Signup and view all the answers

    Which type of sweat gland responds to emotional stress and is found in genital areas and axilla?

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

    Which layer of the epidermis contains melanocytes and is responsible for producing pigments that protect the skin from UV light?

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

    What is the main function of sebum (skin oil)?

    <p>To keep the hair and skin soft and pliant</p> Signup and view all the answers

    Which type of melanin is produced by lighter skinned and lighter haired people?

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

    Where are melanosomes arranged in the skin?

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

    What is the function of collagen in the connective tissue?

    <p>To provide strength and support</p> Signup and view all the answers

    Which layer of the epidermis is composed of several layers of rough, flake-like dead cells?

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

    What accounts for variations in skin color among individuals?

    <p>Amount and type of melanin produced</p> Signup and view all the answers

    What is the main source of melanin production in the skin?

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

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