Totalitarianism is a political system in which the state holds total authority over the society and seeks to control all aspects of public and private life whenever necessary. The concept of totalitarianism was first developed on a positive sense in the 1920s by the Italian fascists.
The sternum or breastbone is a vertical flat bone lying at the anterior middle part of the chest. Externally, it is made up of compact bone. Inside of it is a cancellous or spongy tissue that is entirely vascular. The adult length of the sternum measures 15-17 cm.
A Dr. Mehmet Oz, MD , Cardiology (Cardiovascular Disease), answered. The human heart, which is normally about the size of your fist, is located behind and to the left of your breastbone, also called the sternum. Watch this animation to learn more about your heart and how it works.