Topic 3 Human Body Systems Review

Front

What is the function of white blood cells?

Back

White blood cells are part of the immune system and help fight infections. They do not take up oxygen; that is the role of red blood cells.

Front

What is digestion?

Back

Digestion is the process by which the body breaks down food into smaller nutrient particles that can be absorbed.

Front

How many pairs of nerves are in the peripheral nervous system?

Back

The peripheral nervous system has 43 pairs of nerves.

Front

What is the role of the large intestine?

Back

The large intestine reabsorbs water from food and compacts waste products for elimination.

Front

What is a stimulus?

Back

A stimulus is any change or signal in the environment that can make an organism react.

Front

What is homeostasis?

Back

Homeostasis is the process by which the body maintains a stable internal environment despite changes in external conditions.

Front

What is respiration?

Back

Respiration is the process of taking in oxygen and expelling carbon dioxide, which is essential for energy production in cells.

Front

What are the main components of the circulatory system?

Back

The main components of the circulatory system are the heart, blood vessels, and blood.

Front

What is the function of the respiratory system?

Back

The respiratory system is responsible for taking in oxygen and expelling carbon dioxide.

Front

What is the role of the nervous system?

Back

The nervous system controls and coordinates body activities by transmitting signals between different parts of the body.