A&P Test 3

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Author:
Mandie92
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108907
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A&P Test 3
Updated:
2011-10-14 13:41:50
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Vocabulary
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Test #3
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  1. 4 Types of Tissues
    • -Epithelial
    • -Connective
    • -Muscle
    • -Nervous
  2. 3 Germ Layers
    • -Endoderm
    • -Mesoderm
    • -Ectoderm
  3. Epithelial Tissue
    • -Covers surfaces
    • -Little extracellular material
    • -Basement Membrane
    • -Avascular (no blood supply)
  4. Epithelial Cells
    • -Apical surface (free surface)
    • -Lateral surface (attached to other cells)
    • -Basal surface (attached to basment membrane)
  5. Functions of Epithelial Tissue
    • -Protect underlying structures
    • -Acting as barriers
    • -Permitting the passage of substances
    • -Secreting substances
    • -Absorbing substances
  6. Epithelial Tissue Classified by:
    • -Number of cell layers
    • -Cell shape
  7. Simple epithelium function
    • -Diffusion
    • -Secretion
    • -Absorption
  8. Statified epithelium function
    protection
  9. Squamous epithelium function
    • -Diffusion
    • -Filtration
  10. Cubodial or Columnar cells containing cellular organelles function
    • -Secrete
    • -Absorb
  11. Desmosomes
    mechanically bind cells together
  12. hemidesmosomes
    mechanically bind cells to the basement membrane
  13. Gap junctions allow...
    intercellular communication
  14. mesothelium
    simple squamous epithelium, lines body cavity, thoracic
  15. Endocrine Glands
    • -do not have ducts
    • -secrete hormones directly into the blood
  16. Exocrine Glands
    -secretions are released onto a surface or into a cavity.
  17. merocrine
    no loss of cellular material (sweat glands)
  18. apocrine
    • -part of cell pinches off
    • -shed of apical surface
  19. Holocrine
    -entire cell is shed (sebaceous glands)
  20. Connective Tissue Funcitons
    • -Enclosing and Separating
    • -Connecting Tissues to one another
    • -Supporting and moving
    • -Storing
    • -Cushioning
    • -Transporting
    • -Protecting
  21. Blast
    germ, an immature cell, forms the matrix
  22. Cyte
    cell, maintanence
  23. Clast
    cells break it down
  24. Extracellular matrix contains
    • -Protein fibers
    • -Ground substance
    • -Fluid
  25. Types of Protein fibers
    • -Collagen fibers=flexible but resist stretching
    • -Reticular fibers=form a fiber network
    • -Elastic fibers= recoil
  26. Muscle Cell
    muscle fibers
  27. Muscle Tissue Function
    Contract, or shorten, making movement possible.
  28. 3 Types of muscle tissue
    • -skeletal
    • -cardiac
    • -smooth
  29. Nervous tissue specialized to...
    conduct action potentials (electrical signals)
  30. Neurons
    the functional unit
  31. Neurogila
    support the neurons
  32. mucous membranes
    line cavities that open to the outside of the body
  33. Serous membranes
    line trunk cavities that do not open to the outside of the body
  34. synovial membranes
    line freely movable joints
  35. cutaneous membrane
    skin
  36. Skeletal muscle
    • -striated
    • -voluntary
    • -multinucleated
    • -elongated
  37. Cardiac Muscle
    • -involuntary
    • -straited
    • -intecalated discs
    • -uninucleated
    • -branch shaped
  38. Smooth Muscle
    • -involuntary
    • -nonstriated
    • -uninucleated
    • -spindle shaped
  39. Function of Skin
    • -Protection
    • -Sensation
    • -Temperature regulation
    • -Vitamin D production
    • -Excretion of small amounts of waste products
  40. Keratinocytes
    • -most abundant cell type
    • -produce the fibrous protein keratin
    • -gives sking its protective properties
  41. Melanocytes
    • -produce the brown pigment melanin
    • -found in the deepest layers of the epidermis (granulosum)
  42. Langerhans' cells
    • -epidermal macrophages
    • -help activate the immune system
  43. Merkel Cells
    -touch receptors in association with sensory nerve endings
  44. Thick skin composed of
    Five epithelial strata
  45. Thin skin is missing
    stratum lucidum
  46. hair is found only in
    thin skin
  47. 2 layers of dermis
    papillary and reticular

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