Did You Know?
Veins can be blue when you see them!
How Blood Moves
Blood moves in tubes called veins.
Why Veins Matter
Veins help keep us healthy and strong.
What vein Does
Veins take blood back to the heart.
They help keep blood moving.
Veins are found all over the body.
They are soft and bendy tubes.
Veins can get big or small.
We need veins to stay alive!
More About vein
Veins have been in our bodies since we were born. They grow as we grow. They help us move blood all day long.
Veins help us feel good and stay strong. When we run or play, they work hard to bring blood back to the heart.
In the future, we will learn more about how veins work. They are still a big part of our health!
How Topics Connect
graph TD
A["Vein"] --> B["Blood Vessel"]
B --> C["Carries Blood Towards Heart"]
C --> D["Most Carry Deoxygenated Blood"]
D --> E["Exceptions: Pulmonary & Fetal Circulations"]
E --> F["Carry Oxygenated Blood to Heart"]
D --> G["Systemic Circulation"]
G --> H["Arteries Carry Oxygenated Blood Away"]
What Do These Words Mean?
vein:A tube that carries blood back to the heart.
circulatory system:The system that moves blood around the body.
deoxygenated:Blood that has less oxygen.
oxygenated:Blood that has more oxygen.
systemic circulation:The part of blood flow that goes from the heart to the body and back.
