Structure Of Skin

20 Questions | Total Attempts: 60

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Structure Of Skin

Welcome to the electronic frontier classroom of the 21st century. The test you are about to take deals with the epidermis, dermis, and subcutaneous layer (hypodermis). It will have photomicrographs of the various layers for you to explore. If you check on Mitchell's Cosmic Adventure science web site under the experiments and lecture notes. You will find some helpful reference materials to review before taking this test. You have an unlimited number of attempts to aid in learning about your skin. Each attempt generates a new set of questions and answers. Good Luck and earn a high score in your advanced human anatomy and physiology class.


Questions and Answers
  • 1. 
    Beneath the dermis lies a loose subcutaneous layer rich in fat and areolar tissue. It is sometimes called the _____.
    • A. 

      Stratum germinativum

    • B. 

      Hypodermis

    • C. 

      Epidermis

    • D. 

      Dermal-epidermal junction

  • 2. 
    What is another name for the layer of the fat cells?
    • A. 

      Stratum corneum

    • B. 

      Dermis

    • C. 

      Subcutaneous layer

    • D. 

      Stratum basale

    • E. 

      Epidermis

  • 3. 
    How many strata is the epidermis composed in human skin?
    • A. 

      3

    • B. 

      5

    • C. 

      7

    • D. 

      9

  • 4. 
    The stratum germinativum is called the _____ layer.
    • A. 

      Spiny

    • B. 

      Horny

    • C. 

      Growth

    • D. 

      Clear

    • E. 

      Milky

  • 5. 
    The dermis or corium, is sometimes called the "true skin".
    • A. 

      True

    • B. 

      False

  • 6. 
    Which layer of the epidermis is called the "barrier area" of the skin. It functions as a barrier to water loss, chemicals, environmental threats, and physical trauma.
    • A. 

      Stratum corneum

    • B. 

      Stratum lucidum

    • C. 

      Stratum granulosum

    • D. 

      Stratum spinosum

    • E. 

      Stratum basale

    • F. 

      Stratum germinativum

  • 7. 
    What layer of the epidermis would you find a soft gel-like substance called eleidin?
    • A. 

      Stratum germinativum

    • B. 

      Stratum spinosum

    • C. 

      Stratum lucidum

    • D. 

      Stratum corneum

    • E. 

      Stratum basale

  • 8. 
    What layer of the epidermis have the only cells that undergo mitosis?
    • A. 

      Stratum germinativum

    • B. 

      Stratum spinosum

    • C. 

      Stratum lucidum

    • D. 

      Stratum corneum

    • E. 

      Stratum basale

  • 9. 
    What is the name of the top layer of the epidermis as seen in the image to the right?
    • A. 

      Stratum lucidum

    • B. 

      Stratum corneum

    • C. 

      Stratum granulosum

    • D. 

      Stratum basale

  • 10. 
    What type of markings are found on the body in the image?
    • A. 

      Langer's Cleavage Lines

    • B. 

      Mohs Surgery Lines

    • C. 

      Reticular Cleavage Lines

    • D. 

      Asymmetry Cleavage Lines

  • 11. 
    If an incision "cuts across" Langer's cleavage lines, stress tend to pull the cut edges apart and retards the healing process.
    • A. 

      True

    • B. 

      False

  • 12. 
    Malignant melanoma skin cancer sometimes develops from a nevus (wart).
    • A. 

      True

    • B. 

      False

  • 13. 
    Sweat glands originate from which layer of the skin?
    • A. 

      Epidermis

    • B. 

      Dermis

    • C. 

      Subcutaneous Layer

    • D. 

      Stratum germinativum

  • 14. 
    What happened to the skin of this person marked in dark purple?
    • A. 

      Subcataneous injection

    • B. 

      Tattoo

    • C. 

      Wrinkled toe

    • D. 

      Blister

    • E. 

      Squamous Cell Carcinoma

  • 15. 
    The photomicrograph of human skin is thin.
    • A. 

      True

    • B. 

      False

  • 16. 
    Melanocytes (arrows)produced in the skin itself are found to 1000 - 2000 per square millimeter.
    • A. 

      True

    • B. 

      False

  • 17. 
    Which of the following structures are NOT found in the dermis of the skin?
    • A. 

      Dermal papilla

    • B. 

      Sebaceous glands

    • C. 

      Sweat glands

    • D. 

      Elastic fibers

    • E. 

      Hair follicle

  • 18. 
    Which cell layer of the epidermis are rich in ribonucleic acid (RNA) and function for the production of keratin?
    • A. 

      Stratum corneum

    • B. 

      Stratum lucidum

    • C. 

      Stratum granulosum

    • D. 

      Stratum spinosum

    • E. 

      Stratum basale

    • F. 

      Stratum gerinativum

  • 19. 
    Which cell layer of the epidermis has stratum basale and stratum spinosum to describe it?
    • A. 

      Stratum corneum

    • B. 

      Stratum lucidum

    • C. 

      Stratum granulosum

    • D. 

      Stratum spinosum

    • E. 

      Stratum basale

    • F. 

      Stratum germinativum