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Diagram of the Human Respiratory System (with Labels) Explained

The respiratory system brings oxygen into your body and removes carbon dioxide. It includes the nose, trachea, lungs, and diaphragm. This labelled diagram

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TL;DR: The respiratory system brings oxygen into your body and removes carbon dioxide. It includes the nose, trachea, lungs, and diaphragm. This labelled dia…

Written & reviewed by the Syllab.in Academic Team (CBSE/NCERT subject experts) · Updated Jul 23, 2026

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Diagram of the Human Respiratory System (with Labels): The respiratory system brings oxygen into your body and removes carbon dioxide. It includes the nose, trachea, lungs, and diaphragm. This labelled diagram

Diagram of the Human Respiratory System (with Labels) Explained Simply

The respiratory system brings oxygen into your body and removes carbon dioxide. It includes the nose, trachea, lungs, and diaphragm. This labelled diagram This is a key Biology concept for 10.

Frequently Asked Questions

Why is the right lung larger than the left lung?

The left lung has two lobes instead of three to make room for the heart, which is positioned more on the left side of the chest. The right lung is larger to maximize oxygen absorption capacity.

What happens if the diaphragm is paralyzed?

If the diaphragm is paralyzed (as in some cases of spinal cord injury), breathing becomes very difficult. Patients may rely more on intercostal muscles or may need mechanical ventilation to breathe.

How many alveoli are in the human lungs?

An adult human has approximately 300 million alveoli in both lungs combined, providing a massive surface area (about 70 square meters) for efficient gas exchange.

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