The heart is a organ-muscle that is about the same size of your fist.
the answer is the heart
heart
The heart is a muscular organ located slightly to left side of and behind the breastbone. It is the size of a fist.
The average size of the human heart is as big as your fist.
the answer is the heart
Your heart size can be measured by looking at your very own fist. For most people it is about the size of your fist.
The human heart is a pear-shaped structure about the size of a fist.
like our fist ex: close your fist that is th size of our heart
Typical heart of an adult [1]: 4.7 in (12cm) in length 3.1 in (8cm) to 3.5 in (9cm) in breadth 2.4 in (6cm) in thickness
most doctors say that its the size of your clenched fist
the size of a human fist