Human Body Systems

Front

What is the main function of the circulatory system?

Back

The circulatory system is responsible for delivering nutrients and hormones, removing excess wastes, and exchanging gases.

Front

Why does the body develop a fever when infected with bacteria?

Back

The body is responding to fight off the bacteria.

Front

What causes the heart to pump faster during exercise?

Back

The elevated demand for fuel and oxygen in the muscles.

Front

Which two organ systems are involved in transferring oxygen to cells?

Back

The circulatory and respiratory systems.

Front

What is the primary function of the respiratory system?

Back

To bring in oxygen and remove carbon dioxide.

Front

What role does the excretory system play in the human body?

Back

It removes waste products from the body.

Front

How does the digestive system contribute to the circulatory system?

Back

It breaks down food into nutrients that are absorbed into the bloodstream.

Front

What is homeostasis in relation to body systems?

Back

Homeostasis is the process by which the body maintains a stable internal environment.

Front

What is the function of red blood cells?

Back

Red blood cells transport oxygen from the lungs to the body's tissues.

Front

How do white blood cells protect the body?

Back

White blood cells are part of the immune system and help fight infections.