Video Transcript
Fill in the blank. Circulatory system carries blood
throughout the body. The organ that pumps blood
throughout the body is the blank. And the possible answers to this
are heart, lungs, liver, and diaphragm.
In order to answer this question,
we have to understand what the main organs in the circulatory system are. The main organs in this system are
the heart and blood vessels. These can be either arteries or
veins. And we can see that the heart is
the only organ on our list of answers that is in the circulatory system. However, let’s check the other
answers just to make sure we haven’t missed anything.
The next organ on the list are the
lungs. The lungs are part of a different
organ system called the respiratory system, which makes it possible for us to
breathe.
Next, we have the liver. The liver is part of the digestive
system, which is an organ system that makes it possible for us to digest our
food.
Finally, we have the diaphragm. The diaphragm is a muscle
underneath the lungs, which make it possible for us to breathe in and out by
contracting and expanding. But the diaphragm, like the lungs,
is part of the respiratory system.
Therefore, the only organ that is
on our list of answers that is in the circulatory system is the heart. Therefore, the answer to fill in
the blank, the circulatory system carries blood throughout the body. The organ that pumps blood
throughout the body is the heart.
