THE HUMAN CIRCULATORY SYSTEM

Kingsley Thompson December 28, 2025
📘 THE HUMAN CIRCULATORY SYSTEM

Meaning of the Circulatory System

The circulatory system is the system in the body that moves blood to all parts of the body.
It helps the body get oxygen and food and removes waste materials.

Parts of the Circulatory System

1. The Heart

The heart is a strong muscle
It pumps blood round the body
It beats all the time to keep us alive


2. Blood

Blood is a red liquid in the body
It carries oxygen and digested food
 It helps to fight germs and stop bleeding


3. Blood Vessels

Blood vessels are tubes that carry blood.

Types of blood vessels:

Arteries– carry blood away from the heart
Veins- carry blood back to the heart
Capillaries – very small vessels that connect arteries and veins


Functions of the Circulatory System

The circulatory system:

Carries oxygen to all parts of the body
Carries food to body cells
Removes waste materials
Helps fight diseases
Keeps the body alive and active

Importance of a Healthy Circulatory System

A healthy circulatory system:

Keeps the body strong and healthy
Helps organs work properly
Prevents sickness
Helps us grow well


How to Keep the Circulatory System Healthy

* Eat a balanced diet
* Exercise regularly
* Drink clean water
* Avoid smoking and drugs
* Get enough rest

📝 Objective Questions

  1. The system that carries blood round the body is called the __________ system.

  2. The main organ that pumps blood in the body is the __________.

  3. Blood is a __________ liquid found in the body.

  4. Tubes that carry blood round the body are called __________.

  5. Blood vessels that carry blood away from the heart are called __________.

  6. Blood vessels that carry blood back to the heart are called __________.

  7. The smallest blood vessels that connect arteries and veins are called __________.

  8. One function of the circulatory system is to carry __________ to all parts of the body.

  9. A healthy circulatory system helps to prevent __________.

  10. Eating a balanced diet helps to keep the circulatory system __________.

✔️ Answers to the Objective Questions (Separate)

  1. Circulatory

  2. Heart

  3. Red

  4. Blood vessels

  5. Arteries

  6. Veins

  7. Capillaries

  8. Oxygen

  9. Sickness

  10. Healthy


Kingsley Thompson

Posted by: Kingsley Thompson

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