Label The Circulatory System (Year 6) | CGP Plus - Free Printable
Educational worksheet: Label The Circulatory System (Year 6) | CGP Plus. Download and print for classroom or home learning activities.
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Step-by-step solution for: Label The Circulatory System (Year 6) | CGP Plus
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Show Answer Key & Explanations
Step-by-step solution for: Label The Circulatory System (Year 6) | CGP Plus
Based on the analysis of the provided diagram, here is the solution to the worksheet's challenge.
The diagram illustrates the two main circuits of the human circulatory system: the pulmonary circuit (heart to lungs and back) and the systemic circuit (heart to the rest of the body and back). The six blank boxes correspond to the key vessels and structures involved in this process. Here are the correct labels and their roles:
1. Top Left Box: Pulmonary Artery
* Role: Carries deoxygenated blood from the right ventricle of the heart to the lungs for oxygenation. It is the only artery in the body that carries deoxygenated blood.
2. Top Right Box: Pulmonary Vein
* Role: Carries oxygenated blood from the lungs back to the left atrium of the heart. It is the only vein in the body that carries oxygenated blood.
3. Middle Left Box: Aorta (or Systemic Arteries)
* Role: Carries oxygenated blood from the left ventricle of the heart out to the systemic circulation, supplying all parts of the body with oxygen and nutrients.
4. Middle Right Box: Vena Cava (or Systemic Veins)
* Role: Returns deoxygenated blood from the body back to the right atrium of the heart. The superior vena cava drains the upper body, and the inferior vena cava drains the lower body.
5. Bottom Left Box: Capillaries (in Body Tissues)
* Role: These are the tiny, thin-walled vessels where the actual exchange of gases, nutrients, and wastes occurs between the blood and the body's cells. Oxygen and nutrients diffuse out of the capillaries into the tissues, while carbon dioxide and other waste products diffuse from the tissues into the capillaries.
6. Bottom Right Box: Systemic Veins (leading to Vena Cava)
* Role: Collects the deoxygenated blood from the capillary beds in the body tissues and channels it towards the vena cava to be returned to the heart.
* Oxygenated Blood: Should be colored red.
* Deoxygenated Blood: Should be colored blue.
Why the colors don't show which blood vessels are which:
The color-coding (red for oxygenated, blue for deoxygenated) describes the *state of the blood* inside the vessel, not the *type of vessel* itself. This is why the colors can be misleading if you try to use them to identify arteries and veins.
* An artery is defined as a vessel that carries blood *away* from the heart. The pulmonary artery carries deoxygenated (blue) blood away from the heart to the lungs.
* A vein is defined as a vessel that carries blood *towards* the heart. The pulmonary vein carries oxygenated (red) blood towards the heart from the lungs.
Therefore, using color alone would incorrectly suggest that the pulmonary artery is a vein (because it's blue) and the pulmonary vein is an artery (because it's red). The true classification depends on the direction of blood flow relative to the heart, not the oxygen content of the blood.
Solution: Labeling the Main Parts of the Circulatory System
The diagram illustrates the two main circuits of the human circulatory system: the pulmonary circuit (heart to lungs and back) and the systemic circuit (heart to the rest of the body and back). The six blank boxes correspond to the key vessels and structures involved in this process. Here are the correct labels and their roles:
1. Top Left Box: Pulmonary Artery
* Role: Carries deoxygenated blood from the right ventricle of the heart to the lungs for oxygenation. It is the only artery in the body that carries deoxygenated blood.
2. Top Right Box: Pulmonary Vein
* Role: Carries oxygenated blood from the lungs back to the left atrium of the heart. It is the only vein in the body that carries oxygenated blood.
3. Middle Left Box: Aorta (or Systemic Arteries)
* Role: Carries oxygenated blood from the left ventricle of the heart out to the systemic circulation, supplying all parts of the body with oxygen and nutrients.
4. Middle Right Box: Vena Cava (or Systemic Veins)
* Role: Returns deoxygenated blood from the body back to the right atrium of the heart. The superior vena cava drains the upper body, and the inferior vena cava drains the lower body.
5. Bottom Left Box: Capillaries (in Body Tissues)
* Role: These are the tiny, thin-walled vessels where the actual exchange of gases, nutrients, and wastes occurs between the blood and the body's cells. Oxygen and nutrients diffuse out of the capillaries into the tissues, while carbon dioxide and other waste products diffuse from the tissues into the capillaries.
6. Bottom Right Box: Systemic Veins (leading to Vena Cava)
* Role: Collects the deoxygenated blood from the capillary beds in the body tissues and channels it towards the vena cava to be returned to the heart.
Extension Task: Color Coding Blood
* Oxygenated Blood: Should be colored red.
* Deoxygenated Blood: Should be colored blue.
Why the colors don't show which blood vessels are which:
The color-coding (red for oxygenated, blue for deoxygenated) describes the *state of the blood* inside the vessel, not the *type of vessel* itself. This is why the colors can be misleading if you try to use them to identify arteries and veins.
* An artery is defined as a vessel that carries blood *away* from the heart. The pulmonary artery carries deoxygenated (blue) blood away from the heart to the lungs.
* A vein is defined as a vessel that carries blood *towards* the heart. The pulmonary vein carries oxygenated (red) blood towards the heart from the lungs.
Therefore, using color alone would incorrectly suggest that the pulmonary artery is a vein (because it's blue) and the pulmonary vein is an artery (because it's red). The true classification depends on the direction of blood flow relative to the heart, not the oxygen content of the blood.
Parent Tip: Review the logic above to help your child master the concept of circulatory system worksheet.
