OCR A level PE - Muscle Fibres & Motor Units

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Across
  1. 1. A chemical that is released from a nerve cell which thereby transmits an impulse from a nerve cell to another nerve, muscle, organ, or other tissue.
  2. 4. Muscle fibre suited to 100m sprinter
  3. 5. Carry signals from the central nervous system to effector muscle fibres.
  4. 6. One of the slender threads of a muscle fibre, composed of numerous myofilaments.
  5. 7. Where the action potential moves from nerve to the muscle is the motor end _____
  6. 10. Consists of one motor neurone and the muscle fibres it stimulates.
Down
  1. 2. The change in electrical potential associated with the passage of an impulse along the membrane of a muscle cell or nerve cell.
  2. 3. Muscle fibre suited to 800m running
  3. 8. Area between the motor neuron and the muscle fibre is the neuromuscular _____
  4. 9. Muscle fibre suited to marathon running