BIOL 113 Chapter 07 Crossword

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Across
  1. 3. Released by the terminal cisternae of the sarcoplasmic reticulum
  2. 5. The moving, usually distal attachment of the muscle
  3. 6. A unique feature of skeletal muscle fibers, not found in cardiac or smooth fibers
  4. 8. The acronym describing the extra oxygen consumption following an exercise session
  5. 10. The thick filament of a muscle fiber
  6. 11. Large calf muscle
  7. 13. The quickest system for creating energy for muscular work
  8. 14. An increase in the size of a muscle fiber
  9. 15. Covers the binding sites on actin while at rest
  10. 18. Muscle that is the primary abductor of the shoulder
  11. 19. A muscle is made up of bundles of fibers called this
Down
  1. 1. Contractile unit of a myofibril, between two Z-lines
  2. 2. The muscle that is the primary mover for a given joint action
  3. 4. These muscle fibers are very aerobic and hard to fatigue
  4. 6. Area of the sarcolemma that associates with the axon at the neuromuscular junction
  5. 7. Neurotransmitter released by the motor neuron to stimulate the muscle fiber
  6. 9. Group of three muscles that flex the knee
  7. 12. The cell membrane of a muscle fiber
  8. 16. A motor neuron and all the muscle fibers it innervates
  9. 17. The process of quickly, repeatedly stimulating the muscle fiber so the tension of a twitch can build upon the tension from the previous twitch