A teacher's assistant is not typically required to hold a Bachelor's Degree, so the average pay is much lower than that of the teacher in charge. A teacher's assistant averages about $21,000 yearly with a slight range between $19,300 and $27,400.
Spread to Bone. Roughly 30 to 40 percent of people with advanced lung cancer have spread (metastases) to bones. The most common bones to be affected are the spine (especially the vertebrae in the chest and lower abdominal area), the pelvis, and the upper bones of the arms and legs (humerus and femur).
Video: How cancer spreads. Cancer spreads â or metastasizes â when cancer cells break away from the original tumor and travel through your bloodstream or lymphatic system to other parts of your body. This video shows how a type of skin cancer called melanoma can metastasize.Although the appearance of cancer cells and the way they spread varies depending on the type of cancer, the general concepts shown here are useful in understanding how any cancer can spread. Keep in mind that not all cancers metastasize.his video shows how a type of skin cancer called melanoma can metastasize. Although the appearance of cancer cells and the way they spread varies depending on the type of cancer, the general concepts shown here are useful in understanding how any cancer can spread.