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Veins take blood to the heart, while arteries take blood away from the heart. Also, veins have valves that don't allow backflow because their wall contains almost no smooth muscle to pump the blood - they cannot constrict and dilate on their own. Veins rely on the body's muscular movement to move the blood contained in them. Arteries, however, can constrict or dilate to diver blood flow to different parts of the body and to keep blood pressure relatively constant. They have a large smooth muscle component in their walls.
What else can I help you with?
What do the circulatory do?
Circulate the blood. composed of the heart, arteries and viens.
How are viens and arteries the same?
they both send blood to the body
What type of tube system does the circulatory system has?
It has arteries,viens, and capillaries
Where do arteries send blood to?
arteries send blood to the rest of the body, from the heart; viens send it back to the heart from the body.
Does viens have red cells?
Of course. They may not be as red as red cells are in arteries . . .
What viens leads to the heart?
Pulmonary veins. Arteries lead away from the heart.
How are blood cells and red blood cells alike?
they both travel in viens and arteries
What would happen if your body only had viens and no arteries?
Viens bring deoxygenated (no oxygen) blood back to the heart. Arteries bring oxygenated (with oxygen) to tissues, muscles, etc. throughout the body. If there are no arteries, tissures, muscles, etc. couldn't get oxygen or nutrients, and therefore, couldn't fuction. The result is immediate death.
How blood passes to all parts of the body?
It pumps from the heart to the arteries then to the viens then through out your body
Are the viens carrying the blood to the heart?
yes, and arteries carry blood away from the heart.
Why is arteries has thick walled than viens?
All arteries have thicker wall than veins because they have to resist the pressure of the blood being pumped from the heart
Do capillaries connect arteries and viens?
No, arteries carry blood away from the heart, veins carry blood back to the heart, and capillaries are where blood disperses throughout areas in the body. capillaries are sort of in between, but not really.
