Front

What is the main function of this system?

Back

It is a protective barrier against infection and disease

Answer explanation

The main function of the system is to act as a protective barrier against infection and disease, which is crucial for maintaining overall health and preventing pathogens from entering the body.

Front

Which body system is used for communicating with the body with electrical messengers?

Back

Nervous

Answer explanation

The nervous system communicates with the body using electrical signals called action potentials. This system is responsible for rapid responses and coordination, distinguishing it from the slower hormonal communication of the endocrine system.

Front

The integumentary system consists of what structure?

Back

Skin

Answer explanation

The integumentary system primarily consists of the skin, which serves as a protective barrier for the body. Other options like heart, muscle, and blood vessels are part of different systems.

Front

Which system provides oxygen and removes carbon dioxide?

Back

respiratory

Answer explanation

The respiratory system is responsible for providing oxygen to the body and removing carbon dioxide, which is a waste product of metabolism. The other systems listed do not perform this function.

Front

Which system carries blood to and from body cells?

Back

circulatory

Answer explanation

The circulatory system is responsible for transporting blood to and from body cells, delivering oxygen and nutrients while removing waste products. The other systems listed do not perform this function.

Front

How do the muscular and skeletal systems work together to help the body?

Back

They provide structure and movement for the body.

Answer explanation

The muscular and skeletal systems work together to provide structure and movement for the body. Muscles contract to move bones, allowing for various physical activities and maintaining posture.

Front

Which best compares the respiratory system to the circulatory system?

Back

The respiratory system provides oxygen for cells, while the circulatory system transports oxygen to cells.

Answer explanation

The correct choice states that the respiratory system provides oxygen for cells, while the circulatory system transports oxygen to cells. This accurately describes the distinct roles of each system in the body.

Front

How does the muscular system rely on the respiratory system?

Back

The respiratory system brings oxygen into the body for the muscular system to use.

Answer explanation

The correct choice explains that the respiratory system brings oxygen into the body, which is essential for the muscular system to produce energy during physical activity. Without oxygen, muscles cannot function effectively.

Front

Which two human body systems are most responsible for getting oxygen to cells?

Back

circulatory and respiratory

Answer explanation

The circulatory and respiratory systems work together to deliver oxygen to cells. The respiratory system brings oxygen into the body, while the circulatory system transports it to cells throughout the body.

Front

Which system of the human body provides protection to most of the major organs? Options: Nervous System, Muscular System, Skeletal System, Circulatory System

Back

Skeletal System

Answer explanation

The skeletal system provides protection to most major organs, such as the brain, heart, and lungs, by forming a rigid structure that encases and supports them, making it the correct choice.