Understanding the Heart

By: Professor Wallice

The HeartFunction: a pump to send oxygen-rich blood, which contains oxygen and nutrients that every cell in your body need to survive, to all parts of your body.

FishFish have a two-chambered heart that pumps the blood to the gills and from there it goes on to the rest of the body.

AmphibiansHave a three-chambered heart and a double circulatory system which is used, but the heart is not always completely separated into two pumps

Human

Each time the heart contracts it does with all its force.

In skeletal muscles, the principle of gradation is present.

1 day =

100,000 beats +

4,300 gallons of blood pumped

Fact:

To Review:

What is the function of the heart?

What are the differences between Amphibian, Human, and Fish hearts?