The average size of a human heart is approximately equivalent to which object?

The average size of a human heart is typically described as being approximately the size of a person's fist. This analogy helps people visualize the dimensions of the heart more easily and serves as a useful comparison when explaining its size in educational contexts. The fist's size can vary from person to person, but generally, it provides a practical reference point for the human heart's volume and shape.

In this context, it's essential to understand that the comparison is made relative to the individual whose heart is being discussed. Therefore, the best analogy involves using "their" fist, as it directly relates to the specific individual in question, making the description more personal and accurate. The emphasis on the individual's fist illustrates the intimate connection between the heart and its owner's size and structure.