diaphragm. 1  the partition of muscles and tendons that separates the chest cavity from the abdominal cavity; midriff. 2  any membrane or partition that separates one thing from another. 3  a dividing wall at the node of a plant stem. 4  a device to regulate the amount of light entering the lens of a camera, microscope, etc. (anatomy) In mammals, a sheet of muscle separating the thorax from the abdomen, contracted and relaxed in respiration to draw air into and expel air from the lungs; also called thoracic diaphragm. ( 2 anatomy) Any of various membranes or sheets of muscle or ligament which separate one cavity from another.
Question: Who should I see about my back pain, a chiropractor or an orthopedist? Answer: Patients often ask if they can or should be seen by a chiropractor for the treatment of back pain. There have been a number of studies that show effective treatment of back pain by chiropractors. However, not all causes of back pain should be treated by a chiropractor.
1 Primary care providers are often the first port of call for patients when back pain strikes, and generally include: 2  Primary care physicians (Family practice doctors, Internists, Obstetricians, Gynecologists, Pediatricians).