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5 Written Questions

5 Matching Questions

  1. Three Parts to the structure of a Neuron:
  2. Perimysium
  3. As Sarco Shortens
  4. Parasympathetic Nervous System
  5. The sliding filament theory
  1. a actin filaments slide over myosin.
    Z-lines approach end of myosin filaments
  2. b surrounds bundle
  3. c Cell Body, Dendrites, Axon
  4. d the division of the autonomic nervous system that calms the body, conserving its energy (Rest and Digest)
  5. e • Formation of cross bridges between actin and myosin filaments.
    • Reduction in distance between z-lines or sarcomere "power stroke"
    • ATP is required for muscle contraction
    o Myosin ATPase breaks down ATP as fiber

5 Multiple Choice Questions

  1. This nervous system provides involuntary control over smooth muscle, cardiac muscle, and glands.
  2. Increased ability to maintain cardiac output against increased BP during weight training
  3. Carries information from skin, sensory organs, skeletal muscles, joints, and internal organs to CNS; directs voluntary movements
  4. o maximal for production
    o Speed of contraction
    o muscle fiber efficiency
  5. 600 (40-50% body weight)

5 True/False Questions

  1. The site where the motor neuron and muscle cell meet is called the:neuromuscular junction

          

  2. Connective Tissuestabilizes and supports components of skeletal muscle
    Surrounds muscle at each organization level.

          

  3. Stretch ReflexBasic skeletal muscle unit. Capable of force production and shortening. Arrangement of protein filaments and gives straight appearance.

          

  4. Sarcopenia• 10% muscle mass lost is between 25-50 years of age
    • additional 40% lost between 50-80 years of age
    • Also a loss of fibers and gain in slow fibers
    • Also due to reduced physical activity

          

  5. Atrioventricular nodedelays impulse by 1/10 of second, allowing atria to contract before ventricles

          

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