Circulatory System
Respiratory System
Digestive System
Connections
100

What is the circulatory system responsible for? 

The circulatory system moves blood through the body using the heart, blood vessels, and blood.

100

What is the respiratory system responsible for? 

The respiratory system brings oxygen into the body and removes carbon dioxide.

100

What is the digestive system responsible for? 

The digestive system breaks down food so the body can use its nutrients.

100

After food is digested, nutrients enter the blood in the _______________. The ___________ system then carries those nutrients to all the body’s cells.

After food is digested, nutrients enter the blood in the small intestine. The circulatory system then carries those nutrients to all the body’s cells.

200

What is the function of the heart?

The heart pumps blood throughout the body using arteries and veins to carry blood.

200

What is the function of the trachea? 

Air travels down the windpipe (trachea) into the lungs and reaches tiny air sacs called alveoli.

200

What is the function of the esophagus?

A tube that moves food into the stomach.

200

The _____________ system supplies the oxygen that cells need to use those nutrients to make energy.

The respiratory system supplies the oxygen that cells need to use those nutrients to make energy.

300

What is the function of arteries?

Arteries carry oxygen-rich blood away from the heart to the body

300

What is the function of the lungs? 

The lungs absorb the oxygen from the air. This is where carbon dioxide and oxygen are exchanged. 

300

What is the function of the stomach?

The stomach breaks down food with stomach acid and enzymes.  

300

In addition to oxygen, the blood also picks up ___________ _____________, a waste product, from cells and brings it back to the lungs so it can be breathed out.

In addition to oxygen, the blood also picks up carbon dioxide, a waste product, from cells and brings it back to the lungs so it can be breathed out.

400

What is the function of veins? 

Veins bring blood back to the heart. Blood carries oxygen, nutrients, and waste.

400

What are alveoli?

Tiny air sacs in lungs where gas (oxygen and carbon dioxide) exchange happens.

400

What is the function of the small intestine?

The small intestine is where most nutrients are absorbed into the blood through tiny finger-like parts called villi.

400

We take in _______ and __________ and get rid of waste and _________ __________ (a gas).

We take in food and oxygen and get rid of waste and carbon dioxide

500

What helps stop the bleeding when you get a cut?

Platelets help stop bleeding when you get a cut.

500

What is the function of the diaphragm?

The diaphragm, a muscle under the lungs, moves down and up to help fill and empty the lungs.

500

What is the function of the large intestine?

The large intestine absorbs water and helps form solid waste that the body gets rid of.

500

What is the flow of the systems? 

Ex. First, I eat food, it is carried by the digestive system in order to.....

  1. Digestive system breaks down food into nutrients
  2. Nutrients enter the blood
  3. Circulatory system carries nutrients and oxygen to cells
  4. Respiratory system brings in oxygen
  5. Cells use oxygen + nutrients to make energy!
  6. Blood carries waste (carbon dioxide) back to lungs to breathe out
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