Generation Genius Human Body Systems

As your body works harder, what happens to your heart rate?

What happens to what's left of our food after it goes through the intestines?

Where does digestion start?

If you take a rest after running a mile, what happens to your breathing rate?

What important substance is replenished as blood flows through the heart?

As you exercise, your circulatory system works with which other system to take in oxygen?

When Dr. Jeff bends his arms to lift the weight, what is happening to his bicep muscle?

Your lungs are part of which body system?

Which part of your digestive system absorbs nutrients into your bloodstream?

Which system pumps blood through your body?