The Circulatory System is one of the science materials you can find on Gizmo. The material shows the heart and blood vessels which make up the circulatory system. It is known that the circulatory system works to pump blood from the heart to the lungs to get oxygen.
Once learning about Circulatory System, you can take the Circulatory System test on Gizmo. Of course, you need to answer all the questions correctly to get a high score. Do you need the Circulatory System answers? If you accidentally look for the answers to the Circulatory System, you can see them in our post below.
Circulatory System Gizmo Answers
There are four sections on Circulatory System test, including Warming Up, Activity A, Activity B and Extension. To show you the Circulatory System Gizmo Answers, we will show you the answers to Circulatory System for Activity A, B and Extension that we got from StuDocu. We show the correct answers highlighted in bold font.
Here are they:
Warming Up
- How many chambers does the heart have? 4
- What are the names of the chambers? Right atrium, left atrium, right atrium and left ventricle
- Do you see tiny ‘doors’ that open and close as blood is pumped through the heart? Yes?
- What do you think causes heartbeat sounds? I think the blood being pumped through the heat makes that sound.
- Challenge: Why do you think the left atrium and left ventricle are shown on the right side of the diagram? It’s like that because of the anatomical position.
Activity A – Blood Flow
Question: How does blood flow through the heart?
- Observe: Blood in each chamber of the heart is represented by little balls. You may need to click ‘Play’ and observe the balls when they move through the heart and lungs.
- Label: Click ‘Pause’ and turn on Show labels. Label the four chambers of the heart on the diagram. Then, draw arrows to show the direction that blood flows through the heart.
Starting at the right atrium, in what order does blood flow through the four chambers?
Right Atrium | Right Ventricle | Left Atrium | Left Ventricle |
- Analyze: Click ‘Play’. Observe the path of blood that leaves each ventricle.
A. Where does blood from the right ventricle go? It goes into the lungs
B. Where does blood from the left ventricle go? It goes into the head, arms, liver, kidneys, intestines and legs.
- Collect data: Use the syringe to collect a blood sample from the right ventricle (on the left side of the heart diagram). Look at the Data from blood sample numbers.
A. What is the concentration of oxygen in this sample? 36.3
B. What is the concentration of carbon dioxide in this sample? 47.5
- Collect data: Now collect a blood sample from the left atrium.
A. What is the concentration of oxygen in this sample? 93.6
B. What is the concentration of carbon dioxide in this sample? 38.7
- Draw Conclusions: Between the right ventricle and the left atrium, blood goes through the lungs. Based on the data you have collected, what happens in the lungs?
The lungs add oxygen and remove carbon dioxide
Activity B – Blood Circulation
Question: How is blood carried to different parts of the body?
- Observe: Click Play and watch the blood after it leaves the left ventricle. What are some places that blood goes after leaving the heart?
The head, arms, liver, kidneys, intestines and legs
- Compare: The Gizmo shows three types of blood vessels. Arteries carry blood away from the heart, capillaries are small vessels that carry blood to body cells, and veins carry blood back to the heart. Locate examples of arteries, veins, and capillaries.
You can use the syringe to take blood samples from several different veins and arteries
A. Which type of blood vessel usually carries oxygen-rich blood? Arteries
B. Which type of blood vessel usually carries oxygen-poor blood? Veins
C. In which type of blood vessel is oxygen released into body cells? Capillaries
- Challenge: The pulmonary arteries carry blood from the right ventricle to the right and left lungs. The pulmonary veins carry blood from the lungs back to the left atrium. Locate these blood vessels, and use the syringe to take a blood sample from each.
A. How is the blood in the pulmonary arteries different from blood in other arteries? The blood has less oxygen in it.
B. How is the blood in the pulmonary veins different from blood in other veins? The blood has oxygen in it.
- Extend your thinking: How is the circulatory system similar to a road-and-highway system? They both transport to get a final destination.
Extension – What’s in Your Blood?
Question: What is inside blood?
- Observe: Look at the Microscopic view of blood samples . Sketch what you see in the space at right. (If you like, you could also click the camera icon to take a Gizmo snapshot, and then paste your snapshot into a blank word-processing document.)
Find and label the following objects in your sketch:
- Red blood cells (small, round cells that carry oxygen)
- White blood cells (large, irregular cells that fight disease)
- Platelets (tiny fragments that help to stop bleeding when you are cut)
- Collect data: Blood carries many vital substances. Four of these are listed above the Microscopic view. Oxygen and sugar are needed by all body cells. Carbon dioxide and urea are waste products.
What are the concentrations of each substance in this sample?
Oxygen: 93.3
Carbon Dioxide: 39.6
Sugar: 118.5
Urea: 13.8
- Investigate: Take samples of blood from all over the body. Try to determine where sugar enters the blood and where it is removed.
A. Where does sugar enter the blood? Through the liver
B. How can you tell where sugar enters the blood? The blood sugar was high there
C. Where is sugar removed from the blood? Through the left kidney
D. How can you tell? The blood sugar is low there
- Investigate: Take samples of blood from all over the body. Try to determine where sugar enters the blood and where it is removed.
A. Where does urea enter the blood? The liver
B. Where is urea removed from the blood? The Kidney