The inside of the heart is called the endocardium.
Intrathoracic is the medical term meaning inside the chest. The heart and lungs are intrathoracic.
The medical term meaning pertaining to within the heart is "intracardiac."
A thrombus is a clot that forms inside a vessel or the heart.
Cardiac auscultation is the medical term meaning listening to the heart.
Myocardial infarction is the medical term meaning damage to the heart muscle.
Fibrillation is the medical term meaning rapid uncoordinated shuddering of the heart.
Situs inversus is the medical term meaning reversal of the normal position of the heart.
Cardiopathy is the general term meaning any disease of the heart.
Ventriculoplasty is the medical term meaning surgical repair of a ventricle of the heart. The ventricles are the lower chambers of the heart.
Eucardia is the medical term meaning normal heart rate. It contrasts with tachycardia and bradycardia, which are abnormally fast and slow heart rate, respectively.
Bradycardia is the medical term meaning abnormally low heart rate.
Cardioptosis