exam 2 review

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exam 2 review
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2013-05-12 14:04:48
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exam 2 review
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  1. 1 Important events that occur during the inflammatory phase of wound healing include
    D b and c bleeding and clot formation, formation of a scab
  2. 2 Mineral nutrients stored in the skeleton that are important for normal function of the organs include
    B calcium
  3. 3 Cartilage grows in two ways, appositional and intersitital. What is appositional growth?
    C the secretion of new matrix against the external face of existing cartilage
  4. 4 Skin has numerous sensory receptors that respond to environmental stimuli. Which receptors are found in the epidermis?
    A sensory epithiliem called merkel cells for light touch perception
  5. 5 A function of arrector pili is to
    A indicate to us and others that we are alarmed or angry
  6. 6 Important functions provided by the skin include which of the following?
    A it converts modified epidermal cholesterol to a vitamin d precursor necessary in calcium metabolism.
  7. 7 Which of the following statements indicates the way in which the body’s natural defenses protect the skin from the effects of UV damage?
    D prolonged exposure to the sun induces melanin dispersion, which in turn acts as a natural sunscreen.
  8. 8 Apocrine glands, which begin to function at puberty under hormonal influence, seem not to be useful in thermoregulation. Where would we find these glands in the human body?
    B in the axillary and pubic area.
  9. 9 Hypodernal tissue that is found between the skin and the muscles of the body
    C is mostly adipose
  10. 10 A slow growing most common form of skin cancer, basal cell carcinoma, has which properties?
    D both a and b, is a tumor of kertinocytes, appears reddened and smooth
  11. 11 immune cells that protect the skin against bacterial infections include
    D a and b langerhans in epidermis, plasma cells in dermis
  12. 12 the outer most cells of the papilla and hair root are equivalent to which structure found in the epidermis?
    A stratum basale
  13. 13 the touchest cartilage type that is used to anchor tendons and to form symphyses is
    B fibrocartilage
  14. 14 heparin that is secreted in response to a deep skin wound
    C prevents a clot from expanding beyond the injury.
  15. 15 the dermis is a strong, flexible connective tissue layer. Which of the following cell types are likely to be found in the dermis?
    A fibroblasts, macrophages, and mast cells
  16. 16 the cells of the skin most likely to become cancerous are
    C keratinocytes of stratum spinosum
  17. 17 which of the following is not a function performed by your skeleton?
    A neural sensation of temperature and pressure changes in the body
  18. 18 which of the following cutaneous receptors is specialized for the reception of deep or firm pressure?
    C pacinian corpuscles
  19. 19 fibrosis is the formation of scar tissue in a deep wound. Which of the following is correct about scar tissue?
    all of the above-produced by fibroblasts, is dense connective tissi\ue, binds the edges of teh wound together
  20. 20 the composition of the secretions of the eccrine glands is
    C 99 percent water, nacl, and trace amounts of wastes, lactic acid, and vitamin c.
  21. 21 the tissue that is used to construct the embryonic skeleton is
    a hyaline cartilage
  22. 22 skin cells in the epidermis are an activey dividing tissue that is continuously regenerated. The nutrients needed by these rapidly dividing cells is provided by
    C diffusion from capillaries in the papillary region of the skin
  23. 23 important signs that indicate that inflammation is occurring include
    D a and b , raised firm appearance of the inflamed area, pain in the inflamed area.
  24. 24 On the first warm sunny day in March a happy Missoula gardener…..pain and hot sensations over the face, ears and neck, anterior of both arms. Skin is redeened and numerous hard raised areas appear on the arms face and neck. After 24 hours, blisters ….
    B second degree burns of the head and arms incolving 23% of the body
  25. 25 measles…flattened red areas containing numerous small raised bumps or papules. Pain and itching. Most likely cause for this rash is
    B dilation of blood vessels accompanied by invasion of the dermis by white blood cells as mast cells respond to the virus invading the skin
  26. 26 the protective scab sloughs from a healing wound
    A at the end of the proliferative phase after the epidermis has filled in
  27. 27 a shallow wound that does not involve the dermis
    D a and c repairs by epithelial migration, heals without formin a scar
  28. 28 the ability of cartilage and bone tissues to regenerate following an injury is dependent upon which of the followimg conditions?
    D a and b --undamaged covering layer of dense connective tissue, proximity to blood vessels, activation of existing osteocytes and chondrocytes that divide, proximity to blood vessels…
  29. 29 the stem cells of the epidermis are which cells and are responsible for reproducing which cells of the skin?
    D keratinocytes: keratinocytes, merkel cells
  30. 30 the skin glands that empty into hair follicles and produce a secretion that is rich in fatty acids that waterproofs and conditions the hair andskin are
    C sebaceous
  31. 31 Every surface we touch is covered with bacteria, viruses or fungal spores. Why doues our skin not become overwhelmed by microbial growth?
    C low ph of skin secretions injibits microbial growth
  32. 32 which of the statements below is NOT true concerning hair?
    D hair is produced from modified fibrocytes in the papillary region of the dermis.
  33. 33 melanin that is produced by melanocytes
    B is distrubited to surrounding keratinocytes by exocytosis from melanocytes
  34. 34 the skin is an effective regulator of body temperature because
    A extensive capillary beds in the dermis bring blood flow close to the surface of the skin
  35. 35 skin glands whose primary function is to produce odors for chemical communication by secreting fatty acids and hormones are
    B apocrine glands
  36. 36 the primary molecule from which vitamin d is synthesized
    C is a derivative of cholesterol that is synthized in the liver.
  37. 37 blackheads are small skin lesions that are characterized by a reddened raised area surrounding a hair follicle that contains a mass of densely packed oily, waxy secretion. What is likely the cause of this condition?
    D a blocked follicular duct that traps secretions from sebaceous glands
  38. 38 mammary glands are a type of skin gland that produce a uniquie colloidal mixture of water, proteins, and fats in mammals. These glands are a special type of which?
    D apocrine
  39. 39 a patient arrives at the emergency room wxhibiting an injury to the right hand. Reddened area 5 cm, raised center that is hot and hard. Painful.
    C inflammation possibly from a bite or contact allergen.
  40. 40 mast cells in the dermis are responsible for
    C attracting WBCs to the injury site.

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