Chapter 5: Part 4

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Bwaller0016
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92950
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Chapter 5: Part 4
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2011-07-04 18:00:09
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Part 4
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  1. What is another term for the hair follicle receptor?
    root hair plexus
  2. Hair follicle receptor is the _________ ______ ________ around each hair bulb.
    sensory nerve endings
  3. How is the hair follicle receptor stimulated?
    bending of hair
  4. The smooth muscle attached to the follicle is the __________ _______ muscle.
    arrector pili
  5. Arrector pilli muscle is responsible for
    _________ _________.
    goose bumps
  6. Two types of hair are __________ & __________.
    • vellus
    • terminal
  7. What is pale, fine body hair of children and adult females?
    vellus
  8. Coarse, long hair of eyebrows, scalp, axillary, and pubic regions (face and neck of males) is ____________.
    terminal
  9. ____________ is hair thinning in both sexes after age 40.
    Alopecia
  10. True (frank) baldness is ___________ determined & ________ influenced condition.
    genetically, sex
  11. Male pattern baldness is caused by follicular response to _______.
    DHT
  12. Scalelike modification of the epidermis on the distal, dorsal surface of fingers and toes is the ________.
    nail
  13. Low pH secretions and defensions ________ bacterial activity.
    retard
  14. Low ph secretions is _______ _________.
    acid matle
  15. (Physical/mechanical barriers)
    ___________ & ___________ block most water and water soluble substances.
    keratin & glycolipids
  16. Physical barriers allow limited penetration of skin by:
    • lipid soluble substances
    • plant oleoresins
    • organic solvents
    • salts of heavy metals
    • some drugs
  17. Biological barriers are important because of what?
    • dendritic cells
    • macrophages
    • DNA
  18. ______ ml/day of routine perspiration is important.
    500
  19. What cools the body at elevated body temperature?
    dilation of dermal vessels & increased sweat gland activity
  20. Cutaneous sensations are importan for __________, _________, and _________.
    • temperature
    • touch
    • pain
  21. Metabolic functions of the Integumentary system is synthesis of _________ __ _________ & __________.
    Vitamin D precurser & collagenase
  22. Chemical conversion of _________ & some _____________ is another metabolic importance.
    carcinogens and hormones
  23. Blood reservoir contains up to ____% of body's blood volume.
    5%
  24. What are some excretions of the skin?
    • nitrogenous wastes
    • salt in sweat
  25. Most skin cancers are _________.
    benign
  26. What does benign mean?
    do not metastasize
  27. What are risk factors of skin cancers?
    • over exposure to UV radiation
    • frequent irritation of the skin
  28. Some skin lotions contain ______ in _________ that can fix damaged DNA.
    enzymes, liposomes
  29. What are 3 major types of skin cancer?
    • Basal cell carcinoma
    • Squamous cell carcinoma
    • melanoma
  30. ___________ is least malignant, most common skin cancer.
    Basal Cell Carcinoma
  31. ______________ is second most common skin cancer.
    Squamous Cell Carcinoma
  32. Most dangerous skin cancer is ___________.
    Melanoma
  33. What do stratum basale cells do?
    poliferate
  34. Basale cells slowly invade the ___________ & _______________.
    dermis & hypodermis
  35. Basal cell carcinoma is cured by ____________ ____________ in 99% of cases.
    surgical excision

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