Bone metastasis may be the first sign that you have cancer, or bone metastasis may occur years after cancer treatment. Bone metastasis can cause pain and broken bones. With rare exceptions, cancer that has spread to the bones can't be cured. Treatments can help reduce pain and other symptoms of bone metastases.
Medical Definition of Chondrichthyes. : a class comprising cartilaginous fishes with well-developed jaws and including the sharks, skates, rays, chimeras, and extinct related formsâcompare cyclostomata.
The scientific name for the phylum of cartilaginous fishes is Chondricthyes. More specifically, sharks are categorized under subclass Elasmobranchii which is then divided into â¦ the subdivisions Selachii (sharks) and Batoidea (skates and rays).