What percentage of the human body’s energy does the brain use?
5%
10%
20%
40%
Which part of the brain controls balance and coordination?
Cerebrum
Cerebellum
Brainstem
Thalamus
Approximately how much does the average adult human brain weigh?
0.5 kg
1.4 kg
2.5 kg
3 kg
The human brain is made up of about how many neurons?
10 million
1 billion
86 billion
500 billion
Which side of the brain generally controls the right side of the body?
Left hemisphere
Right hemisphere
Cerebellum
Brainstem
The brain communicates with the body through what?
Muscles
Blood vessels
Nervous system
Hormones
What percentage of the brain is water?
30%
50%
73%
90%
At what age does the human brain fully develop (approximately)?
12
18
25
40
Which organ uses the most oxygen in the human body?
Heart
Brain
Liver
Lungs
Which part of the brain is mainly responsible for memory formation?
Hippocampus
Cerebellum
Medulla
Occipital lobe
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