Follow the Flow of Blood
Follow blood through the heart and lungs, identify the major structures, and practice the pathway from start to finish.
Label the Cardiovascular System
Drag each structure to the correct numbered location. Use the anatomy and blood-flow pathway to help you decide where each structure belongs.
✓ Cardiovascular System Labeled!
Great job! You identified the major structures involved in the cardiovascular pathway.
Follow the Flow
Now follow one drop of blood through the entire cardiovascular pathway. Pay attention to when blood changes from deoxygenated to oxygenated.
Vena Cava
✓ Pathway Complete!
You followed blood from the body → right heart → lungs → left heart → body.
Right heart → Lungs → Left heart → Body
Remember: Right = deoxygenated
Left = oxygenated
Now You Try It
Build the cardiovascular pathway in the correct order. Click each structure below as it would be encountered by one drop of blood.
Quick Memory Connections
- Vena cava = returns deoxygenated blood to the heart.
- Right atrium = receives deoxygenated blood.
- Tricuspid valve = right atrium → right ventricle.
- Right ventricle = pumps blood toward the lungs.
- Pulmonary valve = right ventricle → pulmonary artery.
- Pulmonary artery = carries deoxygenated blood toward the lungs.
- Lungs / alveoli = gas exchange; blood becomes oxygenated.
- Pulmonary veins = return oxygenated blood to the left atrium.
- Left atrium = receives oxygenated blood.
- Mitral valve = left atrium → left ventricle.
- Left ventricle = pumps oxygenated blood toward the body.
- Aortic valve = left ventricle → aorta.
- Aorta = carries oxygenated blood to the body.
Ready to Go Deeper?
This lesson focuses on following blood through the heart and lungs. The complete Nursing With Ima Cardiovascular System Study Bundle covers the major cardiovascular concepts you need to know.
Explore the Cardiovascular System Bundle →