skeleton system

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Across
  1. 1. - a bone framework enclosing the brain of a vertebrate; the skeleton of a person's or animal's head.
  2. 3. - The bony frame formed by the ribs round the chest.
  3. 5. - Bone marrow is the flexible tissue in the interior of bones. In humans, red blood cells are produced by cores.
  4. 6. - any of the pieces of hard whitish tissue making up the skeleton in humans and other vertebrates.
Down
  1. 1. -The framework of the body, consisting of bones and other connective tissues, which protects and supports the body tissues and internal organs.
  2. 2. - the series of vertebrae extending from the skull to the pelvis; the spine.
  3. 4. - a structure in the human or animal body at which two parts of the skeleton are fitted together.