understanding the heart
TRANSCRIPT
![Page 1: Understanding the heart](https://reader035.vdocument.in/reader035/viewer/2022062820/58a8877d1a28abb47a8b64c1/html5/thumbnails/1.jpg)
![Page 2: Understanding the heart](https://reader035.vdocument.in/reader035/viewer/2022062820/58a8877d1a28abb47a8b64c1/html5/thumbnails/2.jpg)
The Heart Functions
![Page 3: Understanding the heart](https://reader035.vdocument.in/reader035/viewer/2022062820/58a8877d1a28abb47a8b64c1/html5/thumbnails/3.jpg)
Did you know? your heart beats an average of 100,000 times per day? In that time, it pumps more than 4,300 gallons of blood throughout your entire body.
![Page 4: Understanding the heart](https://reader035.vdocument.in/reader035/viewer/2022062820/58a8877d1a28abb47a8b64c1/html5/thumbnails/4.jpg)
Fish blood circulation
![Page 5: Understanding the heart](https://reader035.vdocument.in/reader035/viewer/2022062820/58a8877d1a28abb47a8b64c1/html5/thumbnails/5.jpg)
Amphibians
![Page 6: Understanding the heart](https://reader035.vdocument.in/reader035/viewer/2022062820/58a8877d1a28abb47a8b64c1/html5/thumbnails/6.jpg)
Human Muscle
![Page 7: Understanding the heart](https://reader035.vdocument.in/reader035/viewer/2022062820/58a8877d1a28abb47a8b64c1/html5/thumbnails/7.jpg)
Heart comparisons