Muscular System

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Across
  1. 3. Think filament of protein found in skeleton muscle cells.
  2. 5. Unit of muscle contraction; composed of two Z lines and the filaments between them.
  3. 7. Any of several muscles having two points of attachment at one end.
  4. 8. junction The point of contact between a motor neuron and a skeletal muscle cell.
  5. 10. Tough connective tissue that connects skeletal muscles to bones.
  6. 12. Having alternating light and dark bands under the microscope.
Down
  1. 1. terminal Neurotransmitters are released from axon terminal.
  2. 2. Any of several muscles having three points of attachment at one end.
  3. 3. Tightly packed filament bundles found within skeletal muscle fibers.
  4. 4. During a muscle contraction, myosi filaments form cross bridges with actin filaments.
  5. 6. Neurotransmitter that produces an impulse in a muscle cell.
  6. 9. fiber Long slender skeletal muscle cells.
  7. 11. Thin filament of protein found in muscles.