Name That System
This system includes the heart and blood vessels.
Circulatory System
Moves your body and helps you stand upright.
Muscles
Your brain makes your stomach growl when you’re hungry.
Nervous + Digestive
This organ pumps blood.
The Heart
This word means a group of similar cells working together.
Tissue
This system helps you breathe in oxygen and release carbon dioxide.
Respiratory System
Breaks down food so your body can use nutrients.
Stomach, Small+Large Intestines
Oxygen travels through your lungs to your bloodstream.
Circulatory + Respiratory
This organ is the main control center of the body.
The Brain
The Smallest Unit of Life
A Cell
This system sends messages using neurons.
Nervous System
Controls automatic actions like heart rate and breathing.
Nervous System
Muscles need calcium from bones to contract.
Muscular + Skeletal
This organ filters the air you breathe and exchanges gases.
The Lungs
The process your body uses to break down food.
Digestion
This system uses hormones to help the body grow, develop, and stay balanced.
Endocrine System
These are released to help you grow and make you sweat
Hormones
Hormones help regulate mood and thinking.
Endocrine + Nervous
This long organ absorbs most of your nutrients.
The Small Intestine
Signals that travel through neurons.
Electrical Impulses
This system defends your body from sickness, viruses, and harmful bacteria.
Immune System
Regulates your fight-or-flight response by releasing adrenaline.
Regulates your fight-or-flight response by releasing adrenaline.
White blood cells travel through your blood to fight infection.
Circulatory + Immune
This gland releases insulin.
The Pancreas
The hormone that helps regulate blood sugar.
Insulin