organ-ic
spleen
Lymphatic/immune system
filters blood
Urinary System
life would not exist without this system
reproductive
large intestine
Digestive system
exchanges gases
Respiratory
sends signals through the blood to a gland
endocrine
largest organ in the body is part of this system
Integumentary system
forms blood cells
skeletal
works closely with the cardiovascular system to keep the blood clean
lymphatic/immune
cardiovascular/circulatory system
produces heat
muscular
absorbs nutrients
digestive
thyroid gland
endocrine system
sends electrochemical signals
nervous
rids our body of excess nitrogen
urinary