Human Body Systems

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

• Increases

• Decreases

• Beats backward

• Stays the same

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

• Nitrogen

• Iron

• Water

• Oxygen

Where does digestion start?

• stomache

• throat

• intestines

• mouth

Your lungs are part of which body system?

• muscular

• circulatory

• digestive

• respiratory

Which part of your digestive system absorbs nutrients into your blood stream?

• mouth

• intestine

• stomach

• bladder

Tags

NGSS.MS-LS1-7

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

• decreases

• increases

• stays the same

• none of these

Which system pumps blood through your body?

• respiratory

• digestive

• circulatory

• muscular

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

• it is twisting up

• it is getting longer

• it is contracting

• it is relaxing

Tags

NGSS.5-PS3-1

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

• absorbed into blood

• disposed of in the bathroom

• becomes stomach acid

• goes back to the stomach

Tags

NGSS.MS-LS1-7

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

• muscular

• digestive

• respiratory

• endocrine