The surface of a living brain is:

so soft it can be cut with a butterknife

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

controls the left side of the body

Adequate sleep is important to your brain because:

your brain works on storing memories as you sleep.

Brain plasticity refers to which of the following?

the ability of brain tissue to take on new functions

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

your ability to plan for the future

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Questions 12

Answers

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

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