Levels of Organization
Organs in Organ Systems
Functions of Organ Systems
System Interactions
How do our systems work to help us run a mile?
100

Scientific name for a living thing. 

Organism

100

Stomach, Intestines, Esophagus, Mouth, Liver, Pancreas, and Gall Bladder

What are the organs in the 

DIGESTIVE SYSTEM?

100

Pumps blood to deliver oxygen to all of the cells in the body and remove Carbon Dioxide. 

What is the 

CIRCULATORY SYSTEM?

100

Blood vessels bring nutrients to muscle cells, giving them the energy they need to contract. Blood vessels then take away carbon dioxide and other wastes produced by muscle cells.

What is the 

CIRCULATORY SYSTEM and MUSCULAR SYSTEM? 

100

Heart rate increases to deliver more oxygen to cells. 

What is the 

CIRCULATORY SYSTEM? 

200

Many organs that work together to perform a specific function. 

What is an organ system (or body system)?

200

Kidneys, Ureters, Bladder, Urethra

What are the organs in the

EXCRETORY SYSTEM? 

200

Removes waste from the body. 

What is the 

EXCRETORY SYSTEM? 

200

The brain receives a message that there is too much carbon dioxide in the blood and sends a message to the lungs to adjust the rate of breathing.

What is the

NERVOUS SYSTEM, CIRCULATORY SYSTEM, and RESPRIATORY SYSTEM? 

200

Balances fluids, minerals, and nutrients. 

What is the 

EXCRETORY SYSTEM? 

300

The basic unit of all life. 

What is a cell?

300

Lungs, Mouth, Nose, Trachea, Diaphragm

What are the organs in the 

RESPIRATORY SYSTEM? 

300

Takes in Oxygen from the environment and removes Carbon Dioxide. 

What is the Respiratory System? 

300

Blood passes through the kidneys where it is filtered. Some nutrients are reabsorbed into the bloodstream, while waste is separated out and excreted as urine.  

What is the 

EXCRETORY SYSTEM and CIRCULATORY SYSTEM? 

300

Breathing harder to take in more oxygen.

What is the 

RESPIRATORY SYSTEM? 

400

Cells come together to form these. 

What is a tissue?

400

Brain, Spinal Cord, Nerves, Sense Organs

What are the organs in the 

NERVOUS SYSTEM? 

400

Coordinates activities of all body systems. 

What is the 

NERVOUS SYSTEM? 

400

Cells in the stomach produce acid, which breaks down food into nutrients. Nutrients are then absorbed into the bloodstream in the intestines.

What is the 

DIGESTIVE SYSTEM and CIRCULATORY SYSTEM?

400

Moves your body, pumps blood, and contracts and relaxes your diaphragm. 

What is the 

MUSCULAR SYSTEM? 

500

Tissue come together to make these. 

What is an organ? 

500

Veins, Heart, Arteries, Capillaries

What are the organs in the

CIRCULATORY SYSTEM? 

500

Breaks food down into nutrients that can be delivered to cells throughout the body by the bloodstream. 

What is the 

DIGESTIVE SYSTEM? 

500

Red blood cells travel from the heart to the lungs and pick up oxygen that has been inhaled. The oxygen-rich red blood cells travel back to the heart and are pumped to all the cells in the body.

What is the 

CIRCULATORY SYSTEM and RESPIRATORY SYSTEM? 

500

Provides glucose so that your cells can release energy. 

What is the 

DIGESTIVE SYSTEM? 

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