| | Conditions Treatments | Bones, Joints Muscles Is the heart muscle connected to any bones? The heart muscle itself is not directly connected to any bones. It is found in the thoracic cavity within the mediastinum and is enclosed by the pericardium. Bones, Joints Muscles - Related Articles Prognosis for Lymph Node Cancer Eye Lift Procedures Cylaris Side Effects What main procedures are used in laser eye surgery? What Causes Swollen Gums? Seizure Medication Alternative What are the risks of hepatitis C a?