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.
Etymology: Gk, epi + derma, skin. the superficial avascular layers of the skin, made up of an outer dead, cornified part and a deeper living, cellular part. Each layer is named for its unique function, texture, or position. The deepest layer is the stratum basale.