The respiratory system diagram shows the nose, mouth, pharynx, larynx, trachea, bronchi, and lungs. The respiratory system allows us to breathe. The respiratory system functions to move air in and out of the lungs so that we can get oxygen and release carbon dioxide. The diagram of respiratory system class 10 is an important concept in biology.

The diagram of respiratory system with labelling is given below:

Diagram of Respiratory System

What is Respiratory System?

The respiratory system diagram shows a network of organs and tissues which are essential for breathing. It includes the airways, lungs, blood vessels, and the muscles powering the lungs. Together, these components collaborate to distribute oxygen throughout the body and expel waste gases such as carbon dioxide.

Also Read: Diagram of Human Lungs

Respiratory System Parts and Functions

The diagram of respiratory system illustrates various components which have their respective functions:

Nose

• Human nostrils have a cartilaginous structure known as the septum, dividing them into right and left passages.
• Tiny hair follicles lining the interior protects against foreign pathogens, while also adding humidity to inhaled air.

Larynx

• Located at the front of the neck and is framed by two cartilaginous chords
• Plays dual role in vocalization and respiration.
• During swallowing, the epiglottis folds over the top of the windpipe, preventing food from entering the larynx.

Pharynx

• The nasal chambers connect to the pharynx which is a passage for air and food.
• The epiglottis, an elastic cartilage, directs air to the lungs and food to the gastrointestinal tract.

Also Read: Difference Between Pharynx and Larynx

Trachea

• The trachea, or windpipe, extends from below the larynx downward into the neck.
• Its walls are reinforced by C-shaped cartilaginous rings, providing structural support and ensuring it remains open for airflow.
• Continuing into the chest, the trachea divides into two bronchi, each leading to a lung.

Bronchi

• The trachea divides into two bronchi, each entering a lung separately.
• These bronchi branch into secondary and tertiary bronchioles, eventually leading to small air sacs known as alveoli.
• Alveoli are single-celled structures with thin walls that enable the exchange of oxygen and carbon dioxide molecules with the bloodstream.

Lungs

• The lungs are spongy organs located on either side of the heart within the thoracic cavity.
• Their main role is to facilitate the exchange of gases between the blood and the air.

Also Read: Human Respiratory System

Conclusion – Diagram of Respiratory System

A diagram of respiratory system can be a helpful tool for understanding how this system works. The respiratory system diagram can show the different organs and tissues of this system and how they are connected to each other. The labeled respiratory system diagram can also show the different parts of the respiratory system and how they work together to allow us to breathe.

Also Read

• Regulation of Respiration
• Function of Lungs in Respiratory System
• Respiration
• Mechanism of Breathing

FAQs on Diagram of Respiratory System

What are the 7 Parts of Respiratory System?

The seven parts of the respiratory system include the nose, pharynx, larynx, trachea, bronchi, lungs, and diaphragm.

Where can I Find the Diagram of Respiratory System Class 7?

You can find the diagram of the respiratory system at the top of this article.

What is the Importance of a Diagram of Respiratory System?

It visually represents the breathing process and helps in understanding respiratory anatomy and physiology.

What Structures are Typically shown in a Diagram of Respiratory System?

The diagram usually includes nasal cavity, pharynx, larynx, trachea, bronchi, bronchioles, alveoli, and diaphragm.

How does the Diagram of Respiratory System Illustrate Gas Exchange?

It shows oxygen entering via inhalation, diffusing into the bloodstream at alveoli, and carbon dioxide being expelled during exhalation.