ch 5.txt

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ch 5.txt
2011-12-22 21:16:33
Integumentary System SCIT 1407

Chapter 5 Integumentary System flash cards for SCIT 1407 with Dr. Alegre.
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  1. Name the two major components of the integumentary system.
    • cutaneous membrane
    • accessory structures
  2. Name the components of the cutaneous membrane.
    • Epidermis
    • Dermis
  3. Name the three accessory structures of the integumentary system.
    • Hair
    • Nails
    • Multicellular Exocrine glands
  4. The other two name for superficial fascia
    • Subcutaneous layer
    • Hypodermis
  5. How many layers of keratinocytes does thin skin have?
    Four layers (No lucidum)
  6. How many layer of keratinocytes does think skin have?
    Five layers
  7. Name the five layers of the epidermis.
    Corina Lu's Granny Spins Germs
    • Stratum corneum
    • Stratum lucidum
    • Stratum granulosum
    • Stratum spinosum
    • Stratum germinativum
  8. Name the epidermal layer that is water resistant, not water proof. This layer covers all exposed skin excluding the anterior surface of the eyes.
    Stratum corneum
  9. How much water do humans lose per day through the process of insensible perspiration?
    Roughly 500 ml (about 1 pt)
  10. Name the stratum where large amounts of keratin and keratohyalin are produced. At this level, cells have stopped dividing.
    Stratum granulosum
  11. Name the stratum that contains large basal cells. This stratum forms epidermal ridges that connect to the dermal papillae.
    Stratum germinativum
  12. Name the stratum that houses melanocytes and Merkle cells.
    Stratum germinativum
  13. Name the function that Merkle cells serve.
    sensitivity to touch.
  14. What accounts for different skin colors.
    Different levels of melanocyte activity.
  15. What makes an individual an albino?
    Albinos have a normal distribution of melanocytes, but these cells are incapable of producing melanin.
  16. Name the thick, clear stratum which covers the stratum granulosum. It is also called thick skin.
    Stratum lucidum
  17. Name two areas of the body where thick skin is found.
    • palms of the hands
    • soles of the feet
  18. Name the dense granules of the cytoplasm that promote dehydration of the cell.
  19. Name the component of the cutaneous membrane contains the capillaries and sensory neurons
  20. Name the tissue that comprises the papillary layer.
  21. Name the layer of skin that is interwoven with the connective tissue fibers of the reticular layer.
  22. Name the component that is comprised of hair, nails, and the exocrine glands.
    Accessory structures
  23. What is the name of the outer layer of the hair shaft?
  24. Name the two types of sweat glands located in the integumentary system.
    • Merocrine
    • Apocrine
  25. Name the sebaceous gland that discharges a waxy, oily secretion into the hair follicles.
    Holocrine gland
  26. Name the type of sweat glands that are located in the armpits, groin, and mammary glands. This type of sweat gland begins secreting at puberty and provide a nutrient source for bacteria.
    Apocrine sweat glands
  27. Name the sweat glands also called the eccrine glands. They are found throughout the body, especially concentrated in the palms of the hands and soles of the feet. These are also responsible for sensible perspiration.
    Merocrine glands
  28. Name the two parts of the body that have the most eccrine sweat glands.
    • palms of our hands (Our palms posses an estimated 500 merocrine sweat glands per square centimeter.)
    • soles of our feet have the highest number of eccrine sweat glands.
  29. What is the pH of sensible perspiration?
    a pH of 4-6.8
  30. Name two functions of the merocrine sweat glands.
    • cool off the skin's surface
    • excrete water and electrolytes
  31. Name the type of perspiration in which an individual loses approximately 500 mL a day.
    Insensible perspiration
  32. Name the sweat glands that the mammary glands are classified under.
    Apocrine glands
  33. Name the sweat glands found in the external auditory canal.
    Ceruminous glands
  34. Name the two layers that are found in hair that are comprised of hard, keratin cells. These two layers are responsible for hairs stiffness.
    Cuticle and cortex
  35. Name the core layer of hair which contains flexible, soft keratin.
  36. Name the deepest part of the hair follicle which is responsible for hair production.
  37. 37.Name the cell responsible for variation in hair color.
  38. Name the part of the nail that is the visible portion.
  39. Name the part of the nail that the visible portion covers.
  40. Name the part of the nail where nail production occurs.
    Root (n the epidermal fold)
  41. Name the numbered step of injury and repair when bleeding and inflamation occurs.
    Step 1
  42. Name the numbered step of injury and repair when a clot or scab forms. This occurrence limits the invasion of more microorganisms.
    Syep 2
  43. Name the numbered step of injury and repair when fibroblast activity leads to the appearance of collagen fibers and ground substance.
    Step 3
  44. Name the numbered step of injury and repair when there is the formation of inflexible, fibrous scar tissue. The healing process is now considered complete.
    Step 4
  45. Name six effects that the aging process has on the integumentary system
    • Epidermis thins
    • Dermal blood supply decreases
    • Glandular activity decreases, causing dryness
    • Number of Langerhans cells decrease, causing a decrease in immunity
    • Melanocyte production decreases
    • Vitamin production decreases (about 75%)