BIOL 223 Final-Deck 3

  1. What is the primary function of red blood cells?
    transportation of gases
  2. White blood cells are primarly involved in:
    detecting and combating pathogens
  3. Little cell fragments that secrete clotting factors are called:
  4. A membrane consists of what two components?
    epithelium supported by a connective tissue
  5. List three places we might find mucous membrane in the human body.
    • lining the digestive tract
    • lining most of our airways
    • any cavity of the body exposed to the environment
  6. Where in the human body do we encounter serous membrane?
    any cavity of the body NOT exposed to the environment
  7. What do we commonly call our cutaneous membrane?
    the skin
  8. Where in the human body will you find synovial membrane?
    lining the joint capsules
  9. List the three functions of the integumentary system that synthesize materials.
    • production of vitamin D
    • production of melanin
    • keratin synthesis
  10. List the five functions of the integumentary system involving regulation and protection.
    • thermoregulation
    • protection against the environment
    • excretion and absorption
    • blood resevoir
    • detection of cutaneous sensation
  11. The bottom 2/3 of a hair are known as the:
    hair root
  12. The upper 1/3 of a hair is called the:
    hair shaft
  13. The parts of a hair below the skin are known as the:
    hair follicle
  14. List the three outer three layers of the hair from outside to inside.
    • connective tissue sheath
    • outer root sheath
    • inner root sheath
  15. List the three layers of a hair proper from outside to inside.
    • cuticle
    • cortex
    • medulla
  16. List the three phases of hair growth.
    • anagen - growth phase
    • catagen - regression phase
    • telogen - resting phase
  17. Where are apocrine secretions released to?
    onto a hair follicle
  18. Where are eccrine gland secretions released to?
    onto the eptithelial cell surface
  19. List, in order, the layers of the epidermis.
    • stratum basale
    • stratum spinosum
    • stratum granulosum
    • stratum lucidum
    • stratum corneum
  20. It takes approximately ____ to _____ days for a cell to move from the stratum basale to the bottom of the stratum corneum. Once it reaches this point it will be another _______ days until it gets sloughed off.
    15-30, fourteen
  21. How often does cell division occur in the epidermis?
    every 19 days
  22. In which layer do the epidermal cells undergo apoptosis?
    stratum granulosum
  23. List the five organelles found in epidermal cells.
    • nucleus
    • mitochondria
    • ribosomes
    • rough ER
    • golgi apparatus
  24. What is the last layer in which all of the cells are still living?
    stratum spinosum
  25. Which layer of the epidermis performs most, or all, of the cell division?
    stratum basale
  26. What is hemoglobin and what role does it play in skin color?
    a pigment that contains iron and binds to oxygen giving skin a pink undertone
  27. Describe the two stages of skin tone changes in response to UV radiation.
    • 1st stage - develops quickly (1-2 hours), fades quickly (24 hours)
    • 2nd stage - develops slowly (3 days), fades slowly (as skin cells slough off), actually synthesizes new melanin
  28. List the six irregularites in skin color discussed in class.
    • erythema - red tint
    • jaundice - yellow tint
    • cyanosis - blue tint
    • pallor - pale tint
    • albinisim - no melanin
    • vitiligo - melanocytes stop working (MJ)
  29. Define hydration and dehydration as they relate to the integumentary system.
    • Hydration - take in water across the skin
    • Dehydration - water leaves body across the skin
  30. Transdermal drugs are used for drugs that are:
    metabolized too quickly with conventional delivery
Card Set
BIOL 223 Final-Deck 3
Study Cards for Finale Exam BIOL 223 CSN