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The circulatory system brings the body's cells what they need to survive - oxygen and nutrients.
The center of the circulatory, or cardiovascular system, is the heart, a powerful pump organ designed to beat many millions of times over the lifetime of an organism. The heart circulates blood throughout the veins and arteries. Arteries carry oxygen-rich blood away from the heart, providing it to tissues, then returning the depleted red bloods cells back to the heart through the veins for reoxygenation.
We need the circulatory system because without that we would have no blood in our body... we would not get the nutrients we need and we would not be living without the heart.
Wiki User
∙ 10y ago
Wiki User
∙ 16y agoThe circulatory system is very imortant. It cleans your blood, and feeds your body with nutrients you need. Your whole body is full of blood, so it all needs it. With out this system, you would die!
Wiki User
∙ 13y agoEach of our body systems are interconnected and dependent on each other. Our heart, which is part of our circulatory system, does not beat unless our brain, which is part of our nervous system, tells it to. Our skeletal system is dependent on our digestive system for increase in size and strength. Our muscular system needs our respiratory and circulatory systems to supply energy in the form of oxygen and nutrients. It takes all the systems for human growth and development. Sample some of the following activities to learn more about human body systems.
Wiki User
∙ 10y agoBecause when multicellular organisms get to a certain size, gas transfer (oxygen) needed by the innermost cells can not get from the outside of the organism to these cells by diffusion processes.
Wiki User
∙ 14y agoof course. u need blood to be pumped to your heart. blood travel through arteries and veins and into your haert and out, keeping your heart pumping
Wiki User
∙ 14y agoOxygen is carried to the extremities of your body to keep you alive.
Wiki User
∙ 12y agoThe circulatory system sends blood throughout your body, which allows you to function.
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What is the similarity between a fish's circulatory system and humans circulatory?
Both are close circulatory system.
What type of Circulatory system is found in humans?
mammals have closed circulatory system and further double circulatory system.
What system do plants have the same as humans?
circulatory system
What type of circulatory system do African lions have?
Their circulartion system is very similar to humans (closed circulatory system)
Why don't humans need a complex circulatory system while an amoeba does not?
lol plz help idk
Do humans have an opened or closed circulatory system?
Humans have a closed circulatory system, in which blood is pumped by the heart through dedicated vessels, where it stays contained, as opposed to an open circulatory system (usually found in invertebrates) where blood is pumped out of the heart and vessels.
Do rabbits have an open or closed circulatory system?
closed. Open circulatory systems are common in athropods, such as scorpions and insects, but not of mammals. They are when the body lacks blood vessels but has blood throughout the entire cavity of the body. Mammals have closed circulatory systems, as they contain blood vessels.
What kind of circulatory system do humans have?
a closed one
Do humans have a double loop circulatory system?
YES.
Do tigers have a open or closed circulatory system?
Tigers are mammals and so their circulatory system is very similar to that of humans.
When do you need the circulatory system?
Always! you need the process of the circulatory system in order to breathe and exhale waste.
What is so special about the circulatory system?
The circulatory system is important to humans because the main components are the heart, the blood, and blood vessels.
