Understanding Our Body Systems

What is the main function of the respiratory system?

• To pump blood throughout the body

• To absorb nutrients from food

• To exchange oxygen and carbon dioxide

• To control body movements

Which part of the circulatory system is responsible for carrying oxygen-rich blood away from the heart?

• Veins

• Arteries

• Capillaries

• Chambers

What is the main role of the stomach in the digestive system?

• To absorb nutrients

• To chew and grind food

• To break down food with acids and enzymes

• To eliminate waste

Which part of the nervous system includes the brain and spinal cord?

• Peripheral nervous system

• Central nervous system

• Autonomic nervous system

• Somatic nervous system

What type of joint is found in your elbow?

• Ball and socket joint

• Hinge joint

• Pivot joint

• Gliding joint

Which muscle is responsible for pumping blood throughout the body?

• Biceps

• Gluteus maximus

• Hamstring

• Heart

How does the diaphragm contribute to the respiratory process?

• It filters the air we breathe

• It contracts and relaxes to help fill and empty the lungs of air

• It absorbs oxygen into the bloodstream

• It cools the air before it enters the lungs

What is the function of red blood cells in the circulatory system?

• To fight infections

• To clot blood

• To carry oxygen to the body's cells

• To carry waste products away from cells

Which part of the digestive system is primarily responsible for water absorption?

• Stomach

• Small intestine

• Large intestine

• Liver

What is the main function of the skeletal system?

• To produce body heat

• To provide structure and support to the body

• To digest food

• To send signals to muscles for movement