Knowing “where is your heart located” helps categorize your chest pain, but location is It lies between the right and left lungs, in the middle of the chest and slightly When the blood supply does not meet the demand of the heart muscles. Excerpt from Luke "The mouth speaks what the heart is full of." William C. Green We can think more about what to say than about why we want to say it. The chest cavity is also called as thoracic cavity and it lies between neck and abdomen. Heart lies slightly to the left in the chest cavity. .