Cardiovascular
Moves blood, oxygen, and heat through every tissue.
Body systems
The eight systems covered here, and which organs belong to each.
Respiratory
Trades oxygen for carbon dioxide with the air.
Nervous
Senses, decides, and commands the rest of the body.
Digestive
Breaks food down and absorbs what the body can use.
Urinary
Filters the blood and balances water and salts.
Endocrine
Regulates the body with hormones released into the blood.
Sensory
Converts light, sound, and touch into nerve signals.
Integumentary
Seals the body in, senses the world, and holds temperature.