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6 Written questions

6 Multiple choice questions

  1. Smooth muscles that produce "goose bumps" when they contract are are attached to hair follicles are called
    a. arrector pili
    b. dermal papillae
    c. hair bulbs
    d. root sheaths
  2. Hair:
    a. is produced by the dermal root sheath
    b. consists of living keratinized epithelia cells
    c. is colored by melanin
    d. contains mostly soft keratin
    e. grows from the tip
  3. Given these part of a hair and hair follicle:
    2. cuticle
    3. dermal root sheath
    4. epithelia root sheath
    5. medulla

    Arrange the structures in the correct order from the otuside of the hair follcile to the center of the hair:
    a. 1,4,3,5,2
    b. 2,1,5,3,4
    c. 3,4,2,1,5
    d. 4,3,1,2,5
    e 5,4,3,2,1
  4. A layer of skin (where mitosis occurs) taht repaes cells lost from the outer layer of th eepidermis is the
  5. Concerning hair growth:
    a. hair falls out of the hair follicle at the end of the growth stage
    b. most of the hair on the body grows continuously
    c. genetic factors and the hormone testosterone are involved in "pattern baldness"
    d. eyebrows have a longer growht stagge and resting stage than scalp hair
  6. Production of cells; melanocytes produce and contribute melanin; hemidesmosomes present

5 True/False questions

  1. papillary layerlayer of dermis responsible for cleavage lines and striae


  2. D. skin appears blue (cyanosis) oxygenated bloodConcerning skin color, which of these statements is NOT correctly matched?
    a. skin appears yellow--carotene present
    b. no skin pigment (alinism)--genetic disorder
    c. skin tans--iincreased melanin production
    d. skin appears blue (cyanosis) oxygenated blood
    e. african americans darker than whites--more melanin in african0american skin


  3. stratum corneumProduction of cells; melanocytes produce and contribute melanin; hemidesmosomes present


  4. papillary layerlayer of dermis responsile for jost of the structural strenght of the skin


  5. apocrine sweat glandsecretions from these coiled, tubular glands are rfoken down by bacteria to produce body odor; found in the axillae and genitalia


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