The Skeletal System | The Muscular System | The Nervous System | The Spinal Cord and Brain |
---|---|---|---|
What bone protects your brain?
skull or cranium
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About how many muscles are there in the human body?
about 650 muscles
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About how many nerves does your body have?
about a billion nerves
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Name 2 descriptors that tell us what the cerebral cortex looks like?
wrinkly outer covering; gray matter
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What is it called when you bruise your brain or hit your head really hard?
concussion
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What are two actions that are leg muscles help us do?
run jump walk skip gallop tippy toe
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What is the center of a nerve cell?
cell body
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What does the cerebellum control?
voluntary muscles
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What is the chain of bones that runs from the base of the cranium all the way down to your pelvis or hips?
spinal column or spine
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These muscles work automatically.
involuntary muscles
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What are the stringy parts of that lead away from the cell body?
dendrites
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What is another name for the medulla?
brain stem
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What are the more than 30 smaller bones called that stack up to make the the spinal column?
vertebrae
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These muscles are controlled by you.
voluntary muscles
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When a doctor taps your knee she's looking for ... to see if your nervous system is healthy.
reflex reaction sends messages out along the dendrites
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What does the medulla control?
involuntary muscles
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What are the three leg bones called?
femur tibia fibula
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These two muscles are involuntary and are not controlled by you.
heart stomach
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When one of the nerves in your body wants to send a message to your brain, it sends the message in or out along the dendrites?
sends messages out along the dendrites
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What are the three parts of the brain?
cerebellum cerebrum medulla
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