Skeletal and Muscular System

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Across
  1. 1. Neurons that control effectors are called _____ neurons.
  2. 4. Cell that will form bone tissue
  3. 9. Which skeleton consists of the bony and cartilaginous parts that support and protect the organs of the head, neck, and trunk?
  4. 10. The neurotransmitter that is released from the vesicle of a motor neuron starting the process of a muscle contraction.
  5. 11. A small gap called the synaptic _____ separates the motor neuron and the muscle fiber.
  6. 13. Thick Muscle Filament
  7. 14. Layers of dense connective tissue called _____ separate an individual skeletal muscle from adjacent muscles and hold it in position.
  8. 15. What are functional junctions between bones called?
  9. 16. _______ system that supports and protects softer tissues, provides points of attachment for muscles, house blood-producing cells, and store inorganic salts.
Down
  1. 2. Cell that breaks down bone tissue
  2. 3. Acetylcholine that stimulated the muscle fiber is rapidly decomposed by the enzyme ______.
  3. 5. The organization of the Myosin and Actin filaments produces the characteristic alternating light and dark _____.
  4. 6. The model of muscle contraction that includes all of the actin-myosin interactions.
  5. 7. The shaft of the bone, between the epiphysis is called what?
  6. 8. Which skeleton consists of the bones of the upper and lower limbs?
  7. 10. Thin Muscle Filament
  8. 11. Which bone runs horizontally between the manubrium of the sternum and the acromion process of the scapulae?
  9. 12. At each end of a long bone which articulates with another bone.