Name:
Date:
Human Organ Systems
1. There are _____________ human organ systems in the body.
2. There are millions of _____________ in the human body.
3. Name all the human organ systems below. Name one important role for each organ
system.
1.
2.
3.
4.
5.
6.
4. Arteries (vessels) typically carry blood ____________ from the heart. Veins carry blood
_________ to the heart.
5. True or False. Your blood is ​blue​ in your body and turns ​red​ outside your body.
_____________
6. The ___________________ system is the largest organ which is your skin.
Name:
Date:
Organs:
Circulatory system
Main Role:
Organs:
Digestive system
Main Role:
Organs:
Endocrine system
Integumentary system
Main Role:
Organs:
Main Role:
Organs:
Immune system
Main Role:
Organs:
Muscular system
Main Role:
Organs:
Nervous system
Main Role:
Organs:
Excretory system
Main Role:
Organs: Reproductive organ
Reproductive system
Main Role: Reproductive organ
Organs:
Respiratory system
Main Role:
Organs:
Skeletal system
Main Role:
Name:
Date: