Heart
The heart is a very important organ in our bodies. It is a muscle that pumps blood to all parts of our body. The heart is located in the middle of our chest, slightly to the left.
Parts of the Heart
The heart has four main parts:
- Left Atrium
- Right Atrium
- Left Ventricle
- Right Ventricle
How the Heart Works
When the heart beats, the atria (plural of atrium) squeeze and push blood into the ventricles. Then the ventricles squeeze and push the blood out of the heart and into the body. This is how the heart pumps blood to all the parts of our body to give them the oxygen and nutrients they need to work properly.
Keeping the Heart Healthy
To keep our hearts healthy, we need to eat healthy foods, exercise, and not smoke. It's also important to visit the doctor regularly to make sure our hearts are working well.
Fun Fact
The heart is about the size of your fist and beats about 100,000 times in one day!
Study Guide Questions
- What is the main job of the heart?
- Where is the heart located in our body?
- What are the four main parts of the heart?
- How does the heart pump blood to the body?
- What are some ways to keep our hearts healthy?
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