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The circulatory system is made up of the heart, veins, arteries and blood. Despite some misconceptions, the heart is not one big, open organ through which blood runs.
There are two upper and two lower chambers. The upper chambers are called the atriums left and right and only receive blood from the body. The lower chambers are called the ventricles left and rightand their task is to send blood out to the body.
Most of us have had a cut before. What did the blood look like? It may have looked red and felt sticky. Blood is made up of many different things: The white blood cells are known as the army and fight off infections and diseases.
Platelets are the smallest cells in the blood that form clots to stop the flow of blood in case you have an injury.
Red blood cells contain hemoglobin, which is responsible for carrying oxygen to your body. Blood has many important jobs! Blood cells flow through the capillaries in single file so that maximum oxygen and nutrient exchange will occur.
It is important for bioengineers to understand and know the amounts of cells in blood in order to understand how to help people whose circulatory system is not working properly or need blood transfusions replacement blood when they have lost too much blood due to severe injury or oftentimes during surgery.
Unfortunately, sometimes the heart can become blocked by fat, which does not allow the blood to flow through your body. Your body needs oxygen to survive, so imagine what would happen if you could not get blood moving through your body to obtain this essential oxygen.
One common procedure used to clear clogged arteries is called angioplasty. During this procedure, a tiny balloon is inserted into the clogged artery and is then inflated.
The artery opens, and then the doctor places a device called a stent into the artery to keep it open after the procedure is completed. This allows the blood to flow through the area of the artery that was previously blocked. Engineers also manufacture artificial blood, organs and equipment to monitor the human body.
They save lives by developing better ways of administering blood transfusions giving a person back the blood they have lost when someone loses a lot of blood due to an injury or during surgery. They have created artificial blood, which can be used in a blood transfusion when real blood is either not available or there is not time to test for blood type.
Also, engineers have developed equipment for detecting blood diseases like diabetes. Biomedical engineers design medical equipment for hospitals to take better care of patients.
Have you seen a microscope? Microscopes and many other devices are designed by engineers. Can you think of other things that need special equipment to view?
Getting blood to all the parts of your body is the most important function of the circulatory system. In this activity, we are going to make fake blood to show the proportion of white blood cells to red blood cells.
We will also see how red blood cells are very flexible because they need to fit through very small capillaries to get oxygen to every part of our bodies. After we make a model of blood today, we are going to invent ways to clean our clogged arteries, just like engineers!
Each student should have their own worksheet s. Have all materials set out. If available, set up the microscopes with the blood cell slides. Be sure to focus the microscope for the clearest view. Do not allow students to adjust the slides or microscopes. Leave the overhead project off or cover the drawing with butcher paper so that the students do not see it before the activity.
With the Students Divide class into teams of two students.
Hand out necessary supplies to each group. Because this process can be timely, you may want to have one student from each group come up to get the supplies.They learn about the different components that make up blood and investigate what happens when the arteries and veins experience buildup from cholesterol.
They will then work in pairs to brainstorm ways to clean our clogged arteries. Blood Cell Basics. Quick Look. Grade Level: 5 () the lessons and activities often require material.
Fifth Grade Activities. By the time students reach the fifth grade, they will be able to create many educational and entertaining activities by themselves. Instant downloads for free blood fonts.
For you professionals, 36 are % free for commercial-use! If you (or your child) has ever asked the question, "what is blood made of?", you must check out this intriguing and fun hands-on illustration! Check out this variety of human body activities!
(This post contains affiliate links.) For Christmas, my parents bought the kids a subscription to The Magic School Bus Science Club..
Our first pack of experiments arrived, and we couldn’t wait to get started! Use this "Basic Human Anatomy" sheet to see how blood carries nutrients through your body.