Skeleton System

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Across
  1. 3. strong connective tissue fibers that hold bones together
  2. 5. bone marrow Found: in hollow center of long bones and made of fat cells
  3. 6. bone highly porous regions of bone inside layer of compact bone; observed in ends of long bones (femur, etc.) and inside flat bones, like ribs. Holes are filled with fat cells, marrow, etc.
  4. 9. smooth, slippery substance. Provides cushion, protection for bones in joints; prevents the bones from wearing against each other. Provides some structure in nose and ear. Provides flexibility in ribcage.
  5. 10. bone marrow Found: in spongy bones and makes red blood cells, platelets and some white blood cells
Down
  1. 1. system The organ system that provides physical support, stores essential minerals, and synthesizes new blood cells
  2. 2. Area where two bones meet. Most provide for movement; include fluid for lubrication and cartilage for protection. Ligaments hold bones together.
  3. 4. bone solid, dense layer around outer surfaces of bones
  4. 7. squishy, fatty tissue found in centers of long bones. Primary site of blood cell production
  5. 8. strong connective tissue fibers that hold muscle to bone