The vectors in a subset S ={ v 1, v 2 ,..., v n } of a vector space V are said to be linearly dependent, if there exist a finite number of distinct vectors v 1, v 2, ..., vk in S and scalars a 1, a 2, ..., ak, not all zero, such that.
spinal cord - a major part of the central nervous system which conducts sensory and motor nerve impulses to and from the brain; a long tubelike structure extending from the base of the brain through the vertebral canal to the upper lumbar region.
What is spinal cancer? Primary spinal cancer develops from cells within the spinal cord or from its surrounding structures (the bones, tissues, fluid or nerves of the spine).Part of the central nervous system (CNS), the spinal cord is a column of nerve tissue which extends from the base of the brain down the back.It is surrounded by three protective membranes and is enclosed within the vertebrae. The spinal cord carries important messages between the brain and the rest of the body.ancer can begin in the CNS or, more commonly, it can spread there. Primary spinal cord or column tumors are tumors that form from cells within the spinal cord itself or from its surrounding structures.