The bones of the skeletal system protect the body’s internal organs, support the weight of the body, and serve as the main storage system for calcium and phosphorus. The muscles of the muscular system keep bones in place; they assist with movement by contracting and pulling on the bones.

The skeleton and muscles function together as the musculoskeletal system. This system (often treated as two separate systems, the muscular, and skeletal) plays an important homeostatic role: allowing the animal to move to more favorable external conditions.

Together, the skeletal muscles work with your bones to give your body power and strength. In most cases, a skeletal muscle is attached to one end of a bone. It stretches all the way across a joint (the place where two bones meet) and then attaches again to another bone.

Doctors use a blood test to look for elevated levels of a substance called creatine kinase, which is released into the bloodstream when muscle fibers deteriorate. Elevated levels may mean you have an inflammatory myopathy.

MRI can detect a variety of conditions of the brain such as cysts, tumors, bleeding, swelling, developmental and structural abnormalities, infections, inflammatory conditions, or problems with the blood vessels.

British Dental Association’s scientific adviser Prof Damien Walmsley said: “The study indicates that people who have amalgam fillings should not be concerned if they need to have a conventional MRI scan.

Pins, plates and metallic joints Metal that is well secured to the bone, such as hip and knee joint replacements, will not be affected by an MRI. The metal won’t heat up or move in response to the machine. But if the metal is near an organ, such as the prostate, distortion could be a problem.

Titanium is a paramagnetic material that is not affected by the magnetic field of MRI. The risk of implant-based complications is very low, and MRI can be safely used in patients with implants.