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The brain uses about half of the oxygen taken in.
Actually the real answer is because the brain is extremely sensitive to changes in its circulatory supply. An interruption of circulation for several seconds will produce unconsciousness and after 4 minutes there may be some permanent brain damage.
Wiki User
∙ 13y ago
Wiki User
∙ 13y agoThe blood flows through your body, this happens by the heart pumping the blood into the veins and the veins lead the all around your body. When the veins have done there job the artieries carry the blood back through the body and back to the heart. It is like a circle through the veins the through the artieries and to the heart. And lets put it this way : if it didnt youd be dead.
Wiki User
∙ 14y agoThe blood supply to the brain is continuous by way of the Circle of Willis.
Wiki User
∙ 14y agoYes
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Because it cannot be recycled ecosystem need a constant supply of?
Energy
The need for air is?
we need air to breath and supply oxegen to our blood.
Why do people die of lack of oxygen while their blood oxygen levels is normal?
To the contrary, oxrgen cycels through your lungs and enters your blood. you use oxygen every second and you need a constant supply of it. As you lack oxygen your body starts to shutdown what isn't needed to keep you alive until your oxygen or blood oxygen is out.
Why do brain cells die when your lungs stop working?
Every cell of our body must need supply of oxygen to maintain its activities. Brain cells are most senstive cells of body.If these cells does not supply with oxygen,ultimately these would die
Why do cancer cells need to become angiogenic?
Just like regular cells, cancer cells also need nourishment to grow. This nourishment is available though blood supply. Since cancer cells grow as an irregular mass, most often, there is no blood supply to certain regions of the cancer cell mass (also known as a tumor) Therefore, these tumors redirect the growth of blood vessels to help them get blood supply
Why does the brain need a continuous supply of blood and oxygen?
The brain needs so much blood because it needs a constant supply of it to keep up with the neurons metabolic demands. 20 percent of the blood that comes from the heart is pumped directly to the brain.
Why does the brain need a constant supply of oxygen and glucose?
because
Is fat is the primary fuel for the brain?
Glucose is the only fuel normally used by brain cells. Because neurons cannot store glucose, they depend on the bloodstream to deliver a constant supply blood glucose. A process called glycogenolysis can break down glycogen stored in the liver to glucose. This then travels in the blood to your brain or muscles in need of glucose.
What are all the organs blood works with?
There is no organ in the body that blood does not "work with". Brain, heart, kidneys, skin, liver, etc etc they all need a blood supply since they all need nutrients and oxygen.
Why does an organism need energy and constant supply of energy?
An organism needs energy and constant supply of materials to grow and develop.
Why does an organism need energy and constant supply of materials?
An organism needs energy and constant supply of materials to grow and develop.
How is blood different when returning to the heart?
when blood is returning to the heart quite oxygenated as the heart need constant supply of blood. but i am not sure about this so you way to use a range of other sources to get a more reliable awnser.
Does blood flow the slowest in the fingers lungs brain or kidneys?
Blood flows slowest in the fingers because it is the most distal (furthest away from body) structure of the four. The other three are vital organs that need a constant supply of blood and are relatively closer to the heart compared to the fingers. By the time it gets to the fingers, it doesn't have as much driving force
Why do your cells need a constant supply of glucose?
Cellular Respiration
How is the brain is kept alive by the circulatory system?
Almost none. It does control its own flow, and it will speed the heart in anticipation of need, but that does not effect the actual flow of blood.
Does the brain need blood to survive?
yes the brain can think with the blood flowing smoothly
Why does an organism need energy and a constant supply of materials?
To grow and develop
