The surface of a living brain is:

so soft it can be cut with a butterknife

Which of the following functions is the prefrontal cortex of your brain responsible for?

your ability to plan for the future

Brain plasticity refers to which of the following?

the ability of brain tissue to take on new functions

Adequate sleep is important to your brain because:

your brain works on storing memories as you sleep.

Which of the following is a function of the right brain hemisphere:

controls the left side of the body

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Questions 12

Answers

1
Neurons send signals to other neurons at a rate of about _______________.
10 mph
200 mph
70 mph
1000 mph
2
The surface of a living brain is:
rubbery and springy to the touch
so soft it can be cut with a butterknife
covered with a protective, leather-like membrane
encased in a protective skin, like a tomato
3
The brain is made up of 78%
oxygen
fat
protein
water
4
Which of the following functions is the prefrontal cortex of your brain responsible for?
your ability to maintain your balance while you dance
your ability to understand what someone else says
your ability to plan for the future
your ability to make new memories
5
Brain plasticity refers to which of the following?
the brain transfer information between hemispheres
how the brain gets larger as a child grows
the ability of brain tissue to take on new functions
the fixed and permanent nature of the brain at puberty
6
Adequate sleep is important to your brain because:
your brain loses brain cells each day if it lacks sleep.
your brain works on storing memories as you sleep.
your brain needs to “shut down” and rest each day.
your brain produces essential proteins during sleep.
7
How many neurons (brain cells) does a human brain have?
100 billion
10 billion
100,000
5 million
8
The brain is about 2% of your body weight, and uses what percentage of your body’s energy?
1%
5%
20%
10%
9
The average adult human brain weighs about:
1 pound
5 pounds
3 pounds
8 pounds
10
Which of the following is a function of the right brain hemisphere:
logical analysis
language
emotions
controls the left side of the body
11
Your brain generates enough electrical power while you are awake to:
turn on a microwave
power a computer
light a 25 watt light bulb.
run a table saw.
12
How long can the brain function without oxygen before damage starts to occur?
4-6 minutes
6-8 minutes
it can’t
2-3 minutes

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