Human Body Systems

Front

What is the primary function of sneezing and coughing in the human body?

Back

Sneezing and coughing force pathogens out of your body.

Front

Which organ controls most functions in the human body?

Back

The brain.

Front

What line of defense does the skin represent in the immune system?

Back

The first line of defense.

Front

What type of muscles are found inside many internal organs?

Back

Smooth muscles.

Front

What role do mucus and cilia play in the respiratory system?

Back

They trap and remove pathogens that enter the respiratory system.

Front

What is the function of the immune system?

Back

To protect the body against pathogens and diseases.

Front

Name the three main types of muscles in the human body.

Back

Skeletal, smooth, and cardiac muscles.

Front

What is the role of the brain in the human body?

Back

It controls most functions, including movement, thought, and sensory processing.

Front

How does the skin act as a barrier to pathogens?

Back

It provides a physical barrier and secretes antimicrobial substances.

Front

What are pathogens?

Back

Microorganisms that can cause disease, such as bacteria, viruses, and fungi.