4th Grade Respiratory System Quizzes, Questions & Answers

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Lets Check Your Knowledge About The Human Respiratory System

The respiratory system is the network of organs and tissues that help you breathe. It includes your airways, lungs, and blood vessels. The muscles that power your lungs are also part of...

Questions: 10 | Attempts: 4132 | Last updated: Mar 28, 2025

Sample Question 1
Your body couldn't breathe without this system.Which one is it?

The Perspiration system.

The Respiratory system.

The Circulatory system.

The Urinary system.

Sample Question 2
The Respiratory system is made up of trachea, the lungs, and the ______________.

Liver.

Diaphragm.

Esophagus.

Pancreas.

Sample Question 3
When you breathe in air, you bring oxygen into your lungs and blow out_________________.

Carbon dioxide.

Carbon monoxide.

Oxygen.

Hydrogen.