Muscle Physiology

  1. The shortening of a muscle is called
    Concentric Contraction: This is the Positive phase during which the beginner exhales for 2 seconds.
  2. The controled lengening of a muscle is called...
    The Ecentric phase of contraction: This is the negative phase during which the beginner inhales for 4 seconds
  3. The motor unit is responsible for ________ and consists of:
    Muscular contraction and consists of the nerve and the muscle fiber it innervates
  4. What is the innervation ratio?
    number of muscle fibers/motor neuron
  5. Law of all-or-none
    When a muscle fiber recieves a signal to contract, either all fibers innervated will contract or none will contract
Card Set
Muscle Physiology
The Muscular system: How muscles work