Muscle function: 1. contraction for locomotion and skeletal movement. 2. contraction for propulsion. 3. contraction for pressure regulation. Muscle classification: muscle tissue may be classified according to a morphological classification or a functional classification.ardiac muscle cells are not as long as skeletal muscles cells and often are branched cells. Cardiac muscle cells may be mononucleated or binucleated. In either case the nuclei are located centrally in the cell. Cardiac muscle is also striated.
1 A rheumatologist (if your back pain is caused by arthritis or other joint problem)  A physical therapist and/or occupational therapist (to help you learn to move and exercise in ways that don't worsen the pain but may improve it)
Internists and family physicians are the most typical entry into the world of medical treatment. The second most common reason for a visit to your primary care doctor is back pain. These individuals have one of the most difficult jobs. These doctors have to know about heart disease, circulation, lungs, liver, kidneys, diabetes, infectious disease, as well as spine. They have the hardest job in medicine.