The circulatory system - Cloze Test Worksheet - Quickworksheets - Free Printable
Educational worksheet: The circulatory system - Cloze Test Worksheet - Quickworksheets. Download and print for classroom or home learning activities.
PNG
548×776
37.4 KB
Free · Personal Use
Quality Assured by Worksheets Library Team
Reviewed for educational accuracy and age-appropriateness
ID: #1095176
⭐
Show Answer Key & Explanations
Step-by-step solution for: The circulatory system - Cloze Test Worksheet - Quickworksheets
▼
Show Answer Key & Explanations
Step-by-step solution for: The circulatory system - Cloze Test Worksheet - Quickworksheets
Let’s go step by step to fill in the blanks using the word bank provided. We’ll match each blank with the correct term based on what we know about the circulatory system.
---
Arteries
Blood travelling in arteries is under high pressure so arteries have thick walls and thick layers of muscular and elastic tissues. They also have a narrow lumen (hole). Arteries take oxygenated blood away from the heart. They do not have any valves. Arteries appear red when viewed through the skin.
> *Note: “Lumen” isn’t in the word bank — but “bore” is listed, which can mean the same thing in this context (the inner space of a tube). So we’ll use “bore”.*
So corrected:
- Blood travelling in arteries
- under high pressure
- have thick walls
- thick layers of muscular and elastic tissues
- narrow bore
- take oxygenated blood
- no valves
---
Veins
Blood in veins is under low pressure so veins have thin walls, less muscular and elastic tissue and a large bore. Veins take de oxygenated blood back to the heart. Valves keep the blood moving in the correct direction. Veins appear blue when they are close to the skin because of the refraction of light through the skin.
> *Check word bank: “de oxygenated” → should be “deoxygenated” (one word) — it’s in the bank as “Deoxygenated”. Also “back”, “correct”, “direction” are all there.*
So:
- under low pressure
- thin walls
- less muscular (or maybe “tissues”? But “muscular” fits better here since it’s comparing to arteries)
Wait — let’s check: The phrase is “less ________ and elastic tissue”. In veins, they have less muscular tissue than arteries. So “muscular” is correct.
- large bore
- de oxygenated → actually, it says “take de ________________ blood” — that’s likely meant to be “deoxygenated” as one word. Word bank has “Deoxygenated”.
- back to the heart
- valves keep blood moving in the correct direction
---
Capillaries
In between arteries and veins are the capillaries. They are very small, one-cell thick blood vessels. Because they are so thin, oxygen, nutrients and hormones can flow out of the blood and into the tissues, and waste materials can flow in. Capillaries contain both oxygenated and deoxygenated blood.
> Check word bank: “one-cell”, “thin”, “blood”, “tissues”, “waste”, “oxygenated”, “deoxygenated” — all present.
---
The Heart
Deoxygenated blood enters the heart via the inferior vena cava (on the bottom) and superior vena cava (on the top).
> Word bank has: “Deoxygenated”, “inferior”, “superior”
---
Now let’s write the full filled-in text with only the words from the word bank:
---
Arteries
Blood travelling in arteries is under high pressure so arteries have thick walls and thick layers of muscular and elastic tissues. They also have a narrow bore. Arteries take oxygenated blood away from the heart. They do not have any valves. Arteries appear red when viewed through the skin.
Veins
Blood in veins is under low pressure so veins have thin walls, less muscular and elastic tissue and a large bore. Veins take de oxygenated blood back to the heart. Valves keep the blood moving in the correct direction. Veins appear blue when they are close to the skin because of the refraction of light through the skin.
*(Note: “deoxygenated” is one word — we’ll write it as such even though the blank says “de ___” — it’s clearly meant to be “deoxygenated”)*
Capillaries
In between arteries and veins are the capillaries. They are very small, one-cell thick blood vessels. Because they are so thin, oxygen, nutrients and hormones can flow out of the blood and into the tissues, and waste materials can flow in. Capillaries contain both oxygenated and deoxygenated blood.
The Heart
Deoxygenated blood enters the heart via the inferior vena cava (on the bottom) and superior vena cava (on the top).
---
Final Answer:
Arteries
Blood travelling in arteries is under high pressure so arteries have thick walls and thick layers of muscular and elastic tissues. They also have a narrow bore. Arteries take oxygenated blood away from the heart. They do not have any valves. Arteries appear red when viewed through the skin.
Veins
Blood in veins is under low pressure so veins have thin walls, less muscular and elastic tissue and a large bore. Veins take deoxygenated blood back to the heart. Valves keep the blood moving in the correct direction. Veins appear blue when they are close to the skin because of the refraction of light through the skin.
Capillaries
In between arteries and veins are the capillaries. They are very small, one-cell thick blood vessels. Because they are so thin, oxygen, nutrients and hormones can flow out of the blood and into the tissues, and waste materials can flow in. Capillaries contain both oxygenated and deoxygenated blood.
The Heart
Deoxygenated blood enters the heart via the inferior vena cava (on the bottom) and superior vena cava (on the top).
---
Arteries
Blood travelling in arteries is under high pressure so arteries have thick walls and thick layers of muscular and elastic tissues. They also have a narrow lumen (hole). Arteries take oxygenated blood away from the heart. They do not have any valves. Arteries appear red when viewed through the skin.
> *Note: “Lumen” isn’t in the word bank — but “bore” is listed, which can mean the same thing in this context (the inner space of a tube). So we’ll use “bore”.*
So corrected:
- Blood travelling in arteries
- under high pressure
- have thick walls
- thick layers of muscular and elastic tissues
- narrow bore
- take oxygenated blood
- no valves
---
Veins
Blood in veins is under low pressure so veins have thin walls, less muscular and elastic tissue and a large bore. Veins take de oxygenated blood back to the heart. Valves keep the blood moving in the correct direction. Veins appear blue when they are close to the skin because of the refraction of light through the skin.
> *Check word bank: “de oxygenated” → should be “deoxygenated” (one word) — it’s in the bank as “Deoxygenated”. Also “back”, “correct”, “direction” are all there.*
So:
- under low pressure
- thin walls
- less muscular (or maybe “tissues”? But “muscular” fits better here since it’s comparing to arteries)
Wait — let’s check: The phrase is “less ________ and elastic tissue”. In veins, they have less muscular tissue than arteries. So “muscular” is correct.
- large bore
- de oxygenated → actually, it says “take de ________________ blood” — that’s likely meant to be “deoxygenated” as one word. Word bank has “Deoxygenated”.
- back to the heart
- valves keep blood moving in the correct direction
---
Capillaries
In between arteries and veins are the capillaries. They are very small, one-cell thick blood vessels. Because they are so thin, oxygen, nutrients and hormones can flow out of the blood and into the tissues, and waste materials can flow in. Capillaries contain both oxygenated and deoxygenated blood.
> Check word bank: “one-cell”, “thin”, “blood”, “tissues”, “waste”, “oxygenated”, “deoxygenated” — all present.
---
The Heart
Deoxygenated blood enters the heart via the inferior vena cava (on the bottom) and superior vena cava (on the top).
> Word bank has: “Deoxygenated”, “inferior”, “superior”
---
Now let’s write the full filled-in text with only the words from the word bank:
---
Arteries
Blood travelling in arteries is under high pressure so arteries have thick walls and thick layers of muscular and elastic tissues. They also have a narrow bore. Arteries take oxygenated blood away from the heart. They do not have any valves. Arteries appear red when viewed through the skin.
Veins
Blood in veins is under low pressure so veins have thin walls, less muscular and elastic tissue and a large bore. Veins take de oxygenated blood back to the heart. Valves keep the blood moving in the correct direction. Veins appear blue when they are close to the skin because of the refraction of light through the skin.
*(Note: “deoxygenated” is one word — we’ll write it as such even though the blank says “de ___” — it’s clearly meant to be “deoxygenated”)*
Capillaries
In between arteries and veins are the capillaries. They are very small, one-cell thick blood vessels. Because they are so thin, oxygen, nutrients and hormones can flow out of the blood and into the tissues, and waste materials can flow in. Capillaries contain both oxygenated and deoxygenated blood.
The Heart
Deoxygenated blood enters the heart via the inferior vena cava (on the bottom) and superior vena cava (on the top).
---
Final Answer:
Arteries
Blood travelling in arteries is under high pressure so arteries have thick walls and thick layers of muscular and elastic tissues. They also have a narrow bore. Arteries take oxygenated blood away from the heart. They do not have any valves. Arteries appear red when viewed through the skin.
Veins
Blood in veins is under low pressure so veins have thin walls, less muscular and elastic tissue and a large bore. Veins take deoxygenated blood back to the heart. Valves keep the blood moving in the correct direction. Veins appear blue when they are close to the skin because of the refraction of light through the skin.
Capillaries
In between arteries and veins are the capillaries. They are very small, one-cell thick blood vessels. Because they are so thin, oxygen, nutrients and hormones can flow out of the blood and into the tissues, and waste materials can flow in. Capillaries contain both oxygenated and deoxygenated blood.
The Heart
Deoxygenated blood enters the heart via the inferior vena cava (on the bottom) and superior vena cava (on the top).
Parent Tip: Review the logic above to help your child master the concept of blood flow worksheet.
