New to Biology: How Does the Brain Work?

[Ali Inam]

Hi everyone,

I am actually very new to biology and unable to understand some of the things.

My question is that, if our heart is working because of the blood it pumps, I mean that our heart needs blood for pumping all the time and if it don't get the blood then it may stop working !

So, how the brain is working ? !

I first related its working to blood and oxygen, but then I realized that there might be something different about our brain.

Any ideas ? !

 

[jim mcnamara]

All the cells in all human tissues do work the same way - they require oxygen and glucose
to respire - to release energy to do work.

Organs all have a blood supply. Blood provides glucose + oxygen and removes the end products of respiration like carbon dioxide. This allows cells to do their job. Your heart and brain have a blood supply.

Beyond that, I don't get what you are trying to ask. The brain has a blood supply. If it is interrupted you go unconscious very quickly. Except under very rare circumstances, if the blood supply is cut off for more than a few minutes the brain dies.

 

[Ali Inam]

I got you !

Glucose was the thing missing from my mind, I actually thought that brain might be working from blood and oxygen only, but where I was missing was to find about its energy provider, so glucose was it !