veins
what do veins carry?
Deoxygenated blood
what do arteries carry?
rich blood
how big is the average human heart?
2 adult hands held together
What does blood transport?
Hormones, nutrients, oxygen, and antibodies.
where do they veins carry blood to?
lungs
where does the arteries carry the blood?
Away from the heart
how does the heart work?
It acts like a pump
What does blood carry?
Carries waste to organs to be removed
what are veins?
blood vessels that carry deoxygenated blood
carries blood away from the heart to different areas of the body
what is the purpose of the heart?
To keep the circulatory system working.
What is the main purpose of the blood?
to transport vital substances like oxygen and nutrients to tissues.