num_pages: 32
description: Although only about the size of your fist, the heart is one of the most critical organs in the human body. Read about the anatomical structure of the heart, as well as its crucial role within the circulatory system. Find out about common heart disorders, as well as how scientists are continuously working to learn more about this amazing organ.
language: English
title: The Heart
titlecomplete: The Heart (The Human Body)
ratings_count: 2
publisher: Childs World Inc