Ketones
Ketones
Yes, CPR continues to supply oxygen to the brain.
The brain is needed because if you didn't have a brain you wouldn't be able to do anything!
The blood vessels around the brain help supply energy for your brain
No
When the blood supply to a portion of the brain is blocked this causes a stroke.
When the blood supply to a portion of the brain is blocked this causes a stroke.
When the blood supply to a portion of the brain is blocked this causes a stroke.
Glucose. How ever the brain can switch to metabolise ketone bodies in periods of long term starvation/fasting
when the heart starts to malfunction, the supply of oxygen to the blood via heart is also impaired, therefore, there is no oxygen supply to the brain which ultimately results in the disfunction of the brain called brain haemorrhage.
Cerebrospinal fluid is what provides as a "cushion" for the brain. (I don't understand your question regarding blood supply)
Well, without a doubt some of the fuel needed by the brain after the body has been fasting is drawn from the body's fat reserves. Some probably comes from muscle tissues as well, although this is probably a lesser amount. Portions more than likely vary depending on the physical fitness of the individual. When fat reserves are depleted, and the body is still in a state of fast, major organs will begin to be consumed to keep the brain intact. I can't tell you specifically where to verify any of this, or even that it is necessarily true. It is true to the best of my knowledge, but I am by no means an expert.