Human Body Systems

Which body system gives your body support and structure to stand up?

• Respiratory system

• Circulatory system

• Skeletal system

• Muscular system

What is the primary function of the immune system as mentioned in the text?

• To move the bones

• To digest food

• To fight off diseases

• To send signals to the body

Why are the endocrine, immune, lymphatic, reproductive, skeletal, and urinary systems not usually studied at elementary levels?

• Because they are not important

• Because they are less complex

• Because they are more complex

• Because they do not interact with each other

How do the muscular and skeletal systems work together?

• The muscular system helps the skeletal system to move around

• The skeletal system helps the muscular system to digest food

• The muscular system sends signals to the skeletal system

• The skeletal system fights diseases for the muscular system

What would happen if the nervous system did not tell the muscles where to move the bones?

• The bones would move on their own

• The muscles would not know where to move the bones

• The immune system would take over

• The bones would become stronger

What does the circulatory system consist of?

• The heart and lungs

• The heart and blood vessels

• The heart and muscles

• The heart and brain

What is the main function of the left side of the heart?

• To pump blood to the lungs to remove carbon dioxide

• To pump oxygen-rich blood to the rest of the body

• To pump blood to the muscles during exercise

• To pump blood to the brain

How often does the heart pump when you are resting?

• 20-40 times each minute

• 40-60 times each minute

• 60-80 times each minute

• 60-100 times each minute

What is the relationship between the circulatory system and the respiratory system?

• The circulatory system provides oxygen to the respiratory system

• The respiratory system pumps blood through the circulatory system

• The circulatory system is directly linked to the respiratory system

• The respiratory system is responsible for blood circulation

What is the main part of the respiratory system?

• The heart

• The blood vessels

• The lungs

• The muscles