Biomed 100 Practice Quiz
Chapter 8, Fall 2007
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  1. What type(s) of muscle tissue is/are under voluntary control?
    1. smooth muscle tissue
    2. cardiac muscle tissue
    3. skeletal muscle tissue
    4. both A. and C.
    5. all of the above

  2. Intercalated discs allow the rapid spread of electrical signals through networks of _?_ muscle tissue.
    1. smooth muscle tissue
    2. cardiac muscle tissue
    3. skeletal muscle tissue
    4. both B. and C.
    5. none of the above (intercalated discs are present in nerve tissue, not muscle tissue)

  3. What connects a muscle to a bone?
    1. one tendon and one ligament
    2. two or more tendons
    3. two or more ligaments
    4. one motor neuron
    5. two or more motor neurons

  4. True or false? Cardiac muscle tissue contains stem cells making the tissue capable of active cell division throughout life.
    1. True.
    2. False.

  5. In muscle, the cells are relatively _?_ and known as _?_.
    1. small / fibers
    2. small / thin filaments
    3. large / fibers
    4. large / thick filaments

  6. The _?_ of muscle have a general appearance of two strings of pearls or beads.
    1. motor units
    2. thin filaments
    3. thick filaments
    4. intercalated discs

  7. By definition, each motor unit contains
    1. the same number of motor neurons
    2. the same number of muscle fibers
    3. both of the above
    4. none of the above

  8. During muscle contraction
    1. the "heads" of myosin molecules attach to actin molecules
    2. the "heads" of myosin molecules bend slightly
    3. the thick filaments pull the thin filaments toward the center of the sarcomere
    4. all of the above

  9. Which part(s) of a motor neuron is/are located in the brain or spinal cord?
    1. proximal end (cell body, etc.)
    2. most of the axon
    3. distal end (synaptic knobs / axon terminals, etc.)
    4. all of the above are located in the brain or spinal cord