Brain Facts
Instructions: Test your knowledge about the human brain and how it works!
- 1.
Approximately how much does the average adult human brain weigh?
A1 poundB3 poundsC2 poundsD4 pounds - 2.
What percentage of the brain is made up of water?
AAbout 60%BAbout 73%CAbout 90%DAbout 50% - 3.
What is the largest part of the human brain called?
AHypothalamusBCerebrumCCerebellumDBrain stem - 4.
How many main lobes does each hemisphere of the brain have?
A2B3C5D4 - 5.
What are the cells in the brain that transmit information called?
APlateletsBStem cellsCRed blood cellsDNeurons - 6.
Which part of the brain is responsible for balance and coordination?
ACerebrumBThalamusCBrain stemDCerebellum - 7.
What is the term for the brain's ability to reorganize itself by forming new neural connections?
ANeurogenesisBNeuroplasticityCNeurotransmissionDNeurodegeneration - 8.
Approximately how fast can information travel along neurons in the brain?
AUp to 120 mphBUp to 2 mphCUp to 268 mphDUp to 25 mph - 9.
What chemical messenger is often called the 'feel-good' neurotransmitter?
AAcetylcholineBSerotoninCGlutamateDDopamine - 10.
Which part of the brain is most associated with forming new long-term memories?
AAmygdalaBFrontal lobeCCerebellumDHippocampus - 11.
What is the protective barrier between the bloodstream and the brain called?
ABlood-brain barrierBMeningesCCerebral cortexDDura mater - 12.
During which stage of sleep does the brain consolidate most memories?
AStage 3 (deep sleep)BStage 1 (light sleep)CStage 2 (moderate sleep)DREM sleep - 13.
Approximately how many synaptic connections does the average adult brain have?
A1 quadrillionB100 billionC100 trillionD1 billion - 14.
What part of the brain controls the 'fight or flight' response?
APrefrontal cortexBAmygdalaCHippocampusDCerebellum - 15.
What is the fatty substance that insulates nerve fibers and speeds up neural transmission called?
AMyelinBCollagenCKeratinDMelanin