Fun Facts about the Heart and Our Blood Circulation
What tool is used to listen to our heart pump blood?
The stethoscope
What is the heart's most important job?
It pumps blood throughout our bodies!
How many valves are in the heart?
4
Which side of the heart sends oxygen rich blood out to the body?
The left side
What type of muscles cause the heart to contract, pumping blood throughout our bodies?
Cardiac Muscle
What time of the day does the heart work?
It works ALL the time
What is the heart doing when we say it "contracts"?
Squeezing (like you do with your hand in a fist!)
The large, bottom parts of the heart are known as the..
Left and right ventricles!
The blood vessels that carry blood back to the heart are called....
Veins
Which two muscles are involuntary, and what does this mean?
Cardiac and Smooth; they work without our help!
How can you find your pulse?
By pressing lightly on your wrist or neck, and feeling for the bouncing movement
Where does the blood mix with the oxygen?
In the lungs!
How many gallons of blood a day does your heart pump?
What are the blood vessels called that carry blood away from the heart?
The arteries
How many muscles do you have throughout your body?
Over 600!
When you're running around, your heart needs a lot more oxygen. What does it have to do to receive more oxygen?
It has to pump more blood.
When the oxygen rich blood is coming back to the heart, where does it enter through?
The pulmonary ventricles
Which side of the chest is the heart located?
In the middle left side of your chest
What gas is removed from our bodies by the lungs when we exhale?
Carbon Dioxide
What is the common word used for the muscle "rectus abdominus"?
Abs!
What is one of the things we talked about that you should NOT do if you want to have a healthy heart?
You should not smoke and you should avoid sugary drinks and food!
Which TWO valves are in charge of controlling the flow as the blood leaves the heart?
The aortic valve and pulmonary valve
What is the muscle that runs right down the middle of the heart, and separates the right and left side?
The septum
Where do the first sound (the lub) AND the second sound (the dub) come from in the heart?
The lub- when the mitral and tricuspid valves close
The Dub- when the aortic and pulmonary valves close after blood has been squeezed out of your heart
Why do skeletal muscles look striped under a microscope?
Because the light and dark parts of the muscle fibers make them look striped!