Lungs

Front

What are the lungs?

Back

The lungs are two large organs in the chest that help us breathe by taking in oxygen and removing carbon dioxide.

Front

What is the main function of the lungs?

Back

The main function of the lungs is to exchange gases, bringing oxygen into the body and expelling carbon dioxide.

Front

What is the diaphragm?

Back

The diaphragm is a dome-shaped muscle located below the lungs that plays a crucial role in breathing.

Front

How do the lungs help with oxygen transport?

Back

The lungs take in oxygen from the air, which then enters the bloodstream and is transported to cells throughout the body.

Front

What happens during inhalation?

Back

During inhalation, the diaphragm contracts and moves down, allowing the lungs to expand and fill with air.

Front

What happens during exhalation?

Back

During exhalation, the diaphragm relaxes and moves up, pushing air out of the lungs.

Front

What is oxygenated blood?

Back

Oxygenated blood is blood that has picked up oxygen from the lungs and is rich in oxygen.

Front

What is deoxygenated blood?

Back

Deoxygenated blood is blood that has delivered its oxygen to the body's tissues and is returning to the lungs to release carbon dioxide.

Front

What is the role of the intercostal muscles?

Back

The intercostal muscles are located between the ribs and help expand and contract the chest during breathing.

Front

What is the effect of high elevation on breathing?

Back

At high elevation, the air pressure is lower, which can decrease the amount of oxygen available for breathing.