The heart is divided into four main areas, or chambers â two upper chambers (called the left and right atrium) and two lower chambers (called the left and right ventricle). There are four valves that control the flow of blood through your heart.he heart is divided into four main areas, or chambers â two upper chambers (called the left and right atrium) and two lower chambers (called the left and right ventricle). There are four valves that control the flow of blood through your heart.
The newly approved Joint Commission on Accreditation of Healthcare Organizations (JCAHO) pain management standards present an important opportunity for widespread and sustainable improvement in pain assessment and management. Unrelieved pain is a major, yet avoidable, public health problem.
Muscle pain affecting the body's soft tissue is called myofascial pain syndrome or MPS. The fascia is connective tissue covering the muscles. Myofascial pain syndrome may involve either a single muscle or a muscle group. In some cases, the area where the pain is felt may not be where the myofascial pain generator is located.