Exam 1

• A lamina propria is

  • a layer of basement membrane
  • a layer of exocrine glands in an epithelium
  • the fuzzy edge of the apical surface of an epithelium with microvilli
  • a layer of irregular or loose connective tissue beneath a mucous membrane
  • a layer of bone tissue in embryonic bone

  a layer of irregular or loose connective tissue beneath a mucous membrane
• The periodic acid-Schiff (PAS) stain can be used to visualize -- in --.

  • myofibrils / fast glycolytic muscle fibers
  • intercalated discs / cardiac muscle fibers
  • myoglobin / slow oxidative muscle fibers
  • mitochondria / slow oxidative muscle fibers
  • glycogen / fast glycolytic muscle fibers


  glycogen / fast glycolytic muscle fibers
• Arrange the following terms in sequential order, from the largest structure to the smallest.

  • muscle fiber, muscle belly, thick filaments, myofibrils
  • muscle belly, muscle fiber, myofibril, thick filaments
  • muscle belly, thick filaments, myofibril, muscle fiber
  • muscle belly, myofibril, muscle fiber, muscle belly
  • thick filaments, myofibril, muscle fiber, muscle belly

  muscle belly, muscle fiber, myofibril, thick filaments
• Type III collagen is found in

  • thick filaments
  • thin filaments
  • collagen fibers
  • elastic fibers
  • reticular fibers

  elastic fibers