1. The human brain consumes about 20 watts and has a mass of 1-2 kilograms. a. Estimate the fraction of the body's power consumption used by the brain. (Hint: How can you estimate the power consumption of the whole body? What is something that you do know that might be a good approximation? Think about conservation of energy.) b. Compare the energy consumption per unit mass of the brain to the rest of the body.
1. The human brain consumes about 20 watts and has a mass of 1-2 kilograms. a. Estimate the fraction of the body's power consumption used by the brain. (Hint: How can you estimate the power consumption of the whole body? What is something that you do know that might be a good approximation? Think about conservation of energy.) b. Compare the energy consumption per unit mass of the brain to the rest of the body.
Chapter5: Calculating Adult Dosages: Oral And Parenteral Forms
Section: Chapter Questions
Problem 3SA
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At repose, the average human generates roughly 100 watts of electricity an our brain uses around 20 watt of the power. There are two key considerations to bear in mind. This intense electrical power is required for the brain to function. And your mind is never turned off. Even while you're sleeping, your brain uses about the same amount of energy as it does during the day. Your neurons are continually conversing as you sleep, informing each other on what is going on. The majority of their energy is spent on continual alertness.
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