Every state and the District of Columbia has a board of nursing with a mission of protecting the public from harm. Governance of the practice of nursing includes: Establishing requirements for initial licensure and retaining: basic education, continuing education and/or competency. Interpreting scope of practice parameters, defined by state statute (nurse practice act)
  Avascular tissue is that which does not contain blood vessels or lymphatics. Examples include: The epithelial layer of the skin, cartilage, and the cornea and lens of â¦ the eye. There are some types of connective tissue that are composed of elastic fibers that are avascular, too.
Avascular necrosis is bone death that occurs when the blood supply to the bones is decreased or stopped.Without an adequate blood supply, the bone breaks down and dies and collapses. If the bone affected is near a joint, the joint may also collapse.Although any bone can be affected, avascular necrosis most often affects ends of the long bones, such as the upper leg bone at the hip.Avascular necrosis is also called osteonecrosis, aseptic necrosis, or ischemic bone necrosis.f the bone affected is near a joint, the joint may also collapse. Although any bone can be affected, avascular necrosis most often affects ends of the long bones, such as the upper leg bone at the hip. Avascular necrosis is also called osteonecrosis, aseptic necrosis, or ischemic bone necrosis.