Human Body Systems

Which BEST explains how the muscular system relies on the respiratory system?

• A. The respiratory system cools the muscular system.

• B. The respiratory system acts as the support system for the muscular system.

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

In which system of the human body does the heart belong?

• A. skeletal system

• B. respiratory system

• C. circulatory system

• D. Nervous System

Which best describes a function of the circulatory system?

• A. transport blood

• B. provide oxygen

• C. help the body move

Which body system’s main purpose is to help the body move?

• A. digestive system

• B. muscular system

• C. respiratory system

Which body system sends messages to the brain?

• A. nervous

• B. muscular

• C. circulatory

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Which body system includes the lungs?

• A. respiratory system

• B. digestive system

• C. skeletal system

This organ is part of the digestive system.

• lung

• heart

• brain

• stomach

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What is the function of the respiratory system?

• To digest your food

• To remove waste from the body

• To take in oxygen and remove carbon dioxide

• To fight disease

What is the function of the digestive system?

• It transports blood and oxygen to your cells

• It breaks down food so the nutrients can be absorbed by your body

• It helps you breathe by taking in oxygen and transporting carbon dioxide out of your body

• It helps you move

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Which statement best describes the relationship between the nervous system and the muscular system?

• The nervous system controls the muscular system.

• The muscular system controls the nervous system.

• The nervous system provides nutrients for the muscular system.

• The muscular system provides nutrients for the nervous system.