Respiratory System Diagram

Front

What is the diaphragm?

Back

The diaphragm is a dome-shaped muscle located at the base of the thoracic cavity that plays a crucial role in breathing by contracting and relaxing to allow air to enter and exit the lungs.

Front

What are bronchi?

Back

Bronchi are the main passageways that branch off from the trachea and lead into the lungs, where they further divide into smaller bronchioles.

Front

What is the function of the right lung?

Back

The right lung is responsible for gas exchange, allowing oxygen to enter the bloodstream and carbon dioxide to be expelled. It has three lobes: the upper, middle, and lower lobes.

Front

What is the function of the left lung?

Back

The left lung, which has two lobes (upper and lower), also facilitates gas exchange, providing oxygen to the blood and removing carbon dioxide.

Front

What are bronchioles?

Back

Bronchioles are the smaller branches of the bronchi that lead to the alveoli, where gas exchange occurs. They are less than 1 mm in diameter.

Front

What is the trachea?

Back

The trachea, also known as the windpipe, is a tube that connects the larynx to the bronchi, allowing air to pass to and from the lungs.

Front

What is the role of alveoli in the respiratory system?

Back

Alveoli are tiny air sacs in the lungs where the exchange of oxygen and carbon dioxide takes place. They increase the surface area for gas exchange.

Front

What is the larynx?

Back

The larynx, or voice box, is located above the trachea and contains the vocal cords. It plays a role in sound production and protects the airway during swallowing.

Front

How does the diaphragm assist in breathing?

Back

During inhalation, the diaphragm contracts and moves downward, increasing the thoracic cavity's volume and drawing air into the lungs. During exhalation, it relaxes and moves upward, pushing air out.

Front

What is the significance of the right and left lung's structure?

Back

The right lung has three lobes, while the left lung has two lobes to accommodate the heart's position. This structural difference allows for efficient gas exchange.