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 (AVN) is a disease that may affect several different bones as a result of temporary or. permanent loss of the blood supply to these bones. The femoral head is most commonly affected by this. disease. Usually, the patients are in their third, fourth or fifth decade of life at the time of diagnose. Initially, patients are asymptomatic, but, in time, AVN leads to joint destruction, requiring surgical. treatment and, in latter stages, total hip replacement.