The Muscular System

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Across
  1. 4. Joins skeletal muscles to bones; a tough connective tissue
  2. 5. The type of muscle that is found in structures such as the stomach, blood vessels, and intestines
  3. 7. A neurotransmitter released by vesicles or pockets in the axon terminals of the motor neuron
Down
  1. 1. The type of muscle that is responsible for voluntary movements
  2. 2. The type of muscle found in the heart
  3. 3. Thin filaments made up of protein
  4. 6. The thick filaments that contain a protein