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Nervous System Fun Facts Flashcards | StudBud
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Nervous System Fun Facts
Nervous System Fun Facts
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Questions
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Answers
1
The brain weighs __ pounds.
1
3
10
30
2
One neuron can be up to ___ long.
a foot
3 feet
10 feet
20 feet
3
If we lined up all the neurons in our body it would be ___ miles long.
600
6
60
6000
4
As we age, our brain shrinks by about ____ every year due to the loss of neurons.
1-2 grams
100-200 grams
10-20 grams
1-2 pounds
5
About how many neurons are in the brain?
10 billion
1 million
100 billion
100 million
6
The slowest signal transmission is within the skin at ___ mph.
1
10
5
15
7
What percentage of the brain is made up of water?
35%
15%
75%
55%
8
We lose neurons as we age. About how many of our neurons are gone by the time we turn 75?
all
1/5
1/2
1/10
9
What makes neurons different from other cells?
When they replicate/divide they consume other cells
When they replicate/divide they become twice as big
They replicate/divide twice as fast
They do not replicate/divide
10
The fastest signal transmission in the body occurs in the spinal cord. They transmit a signal at ___ mph.
168
568
268
68
