MUSCULOSKELETAL SYSTEM (PART 2)

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Across
  1. 1. - Perimysium to form a bundle of fibers called as _________.
  2. 3. - A prolonged contraction of a muscle caused by rapidly repeated stimuli.
  3. 5. - The specific neurotransmitter that stimulates skeletal muscle fibers.
  4. 10. - Each of the axon terminals forms junctions with the sarcolemma of a different muscle cell. The junction is called __________ junctions.
  5. 15. - Many fascicles are bound together by an even tougher “overcoat” of connective tissue called an ___________ , covers the entire muscle.
  6. 17. - A flat sheet or ribbon of tendon like material that anchors a muscle or connects it with the part that the muscle moves is called ___________.
  7. 18. - ___________ defines as each muscle fiber is enclosed in a delicate connective tissue sheath.
  8. 20. - Which chemical – ATP or Ca2+ - triggers sliding of the muscle filaments?
  9. 25. - A fan-shaped muscle overlying the temporal bone, inserts into the mandible and act as a synergist of masseter in closing jaw.
  10. 27. - A tough band of fibrous connective tissue that connects muscle to bone and is capable of withstanding tension is called as _________.
  11. 28. - What is it called for chains of tiny contractile units?
  12. 29. - Myosin filaments are attached to the Z discs by _____ , elastic filaments that run through the core of the thick filament.
  13. 30. - Thick filaments are made mostly bundled of ________ .
Down
  1. 2. - Which muscle cell has single, very long, cylindrical, multinucleate cells with very striations?
  2. 4. - The muscle that closes the jaw by elevating the mandible.
  3. 6. - __________ contain synaptic vesicles filled with a chemical.
  4. 7. - Thin filaments are composed of the contractile protein called ______ .
  5. 8. - ___________ defines as several sheathed muscle fibers are then wrapped by a coarser fibrous membrane.
  6. 9. - Mr Henry is trying with all his might to pull a tree stump out of a ground. It does not budge. What type of contraction are his muscles performing?
  7. 11. Oris - Circular muscle of the lips
  8. 12. reticulum - A specialized smooth endoplasmic reticulum.
  9. 13. impulses - Skeletal muscle fibers must be stimulated by _________to contract.
  10. 14. - Which muscle cell has single, fusiform, uninucleate, no striations?
  11. 16. - Which muscle cell has branching chains of cells, uninucleate, striations, intercalated discs?
  12. 19. - What is the name for many oval nuclei that can be seen just beneath the plasma membrane?
  13. 21. bridges - Myosin heads form ________ when they link the thick and thin filaments together when contraction.
  14. 22. - Movement of a limb toward body midline.
  15. 23. - What type of muscle contraction when bending knee, lifting weights and smiling?
  16. 24. - A long threadlike extension of the neuron.
  17. 26. - Movement of a limb away from midline of body.