An Independent Practice Association, or IPA, is an organization comprised of physicians who maintain their independent practices and also join together as an association. The IPA negotiates with organizations, like HMOs, which will supply both patients and income to physicians.
There are 11 major organ systems in the human body, which include the circulatory, respiratory, digestive, excretory, nervous and endocrine systems. The immune, integumentary, skeletal, muscle and reproductive systems are also part of the human body.
Edit. Share to: 1  Different Organs and Organ Systems of the Body The human body is made of organs and organ systems. 2  Each organ system is specialized to serve a specific function. 3  Organ systems also work together.hare to: 1  Different Organs and Organ Systems of the Body The human body is made of organs and organ systems. 2  Quick Online Quizzes of the Body Systems Human anatomy is the same whether you are in high school, college or medical school. 3  The Five Major Parts of the Brain At its most basic, the brain controls the body.