A+P Muscular system vocab

12345678910111213141516
Across
  1. 3. End of a muscle that attaches to a relatively immovable part .
  2. 8. a chemical that an axon end secretes to stimulate a muscle fiber to contract on the neuron to fire and impulse
  3. 11. A protein in a muscle fiber forms filaments that slide between elements of the protein myosin, contracting muscle fibers.
  4. 13. Stimulus Stimulation level that must be exceeded to elicit a nerve impulse or a muscle contraction
  5. 14. Structural and functional unit of myofibril
  6. 15. sheet of fibrous connective tissue that encloses a muscle
  7. 16. neuron A neuron that transmits impulses from the central nervous system to an effector
Down
  1. 1. Contractile fibers within muscle cells
  2. 2. A narrow extracellular space between the presynaptic and postsynaptic neurons
  3. 4. Protein that, with actin, contracts and relaxes muscle fiber
  4. 5. Brief muscular contraction followed by relaxation.
  5. 6. tone Contraction of some fibers in skeletal muscle at any given time
  6. 7. Period Time between the application of a stimulus and the beginning of a response in a muscle fiber.
  7. 9. cordlike or bandlike mass of white fibrous connective tissue that connects a muscle to a mone
  8. 10. Time period following stimulation during which a neuron or muscle fiber will not respond to a stimulus
  9. 12. End of a muscle attached to a moveable part