The lumbar vertebrae are the 5 largest and strongest of all vertebrae in the spine. These vertebrae comprise the lower back. They begin at the start of the lumbar curve (ie, the thoracolumbar junction) and extend to the sacrum.
1) Sarcoma [CHILDREN]: cancer of connective tissue or supportive tissues, inside of bones - Diagnosed during growth. 2) Carcinomas [ADULTS]: cancer of epithelial origin such as breasts, colon, pancreas, skin, lung which spreads to bone - Diagnosed peak growth periods.
Groups of cells that are similar in structure and function are called _______. connective tissue. nervous tissue. epithelium. multiple cells. tissues. In _______, adjacent plasma membranes fuse together tightly, like a zipper.roups of cells that are similar in structure and function are called _______. connective tissue. nervous tissue. epithelium. multiple cells. tissues. In _______, adjacent plasma membranes fuse together tightly, like a zipper.