Growing lettuce indoors is a great way to eat better and have fun growing your own food. Itâs also the fastest-growing indoor crop â you can actually see it grow from day to day! And thanks to indoor gardens like the AeroGarden, enjoying homegrown lettuce year round has never been easier. 1  Two types of harvesting.
The basic science, in brief: Primary bone healing is lead by the formation of a so-called cutting cone (consisting of osteoclasts at the front of the cone to remove bone and trailing osteoblasts to lay down new bone) across the gaps to form a secondary osteon.escribe the differences between primary and secondary bone healing. escribe the differences between primary and secondary bone healing. The two mechanisms of bone healing are primary bone healing and secondary bone healing. (THIS IS JUST LIKE SKIN: you can sew it up or it can scab.).
The difference between primary and secondary bone cancer. A primary bone cancer is one that starts in the bones. The cancer cells are bone cells that have become cancerous. All the information in this section is about primary bone cancer.A secondary cancer in the bones has spread from somewhere else in the body.This is also called metastatic cancer. The cancer cells are like the cells of the original tumour. So if you have had breast cancer and it spreads to the bones, the cancer cells in the bones will actually be breast cancer cells. primary bone cancer is one that starts in the bones. A secondary cancer in the bones has spread from somewhere else in the body. All the information in this section is about primary bone cancer. If you have secondary bone cancer, you need the section for your original cancer type.