The Skeletal System The Muscular System The Nervous System The Spinal Cord and Brain
100
What bone protects your brain?
skull or cranium
100
About how many muscles are there in the human body?
about 650 muscles
100
About how many nerves does your body have?
about a billion nerves
100
Name 2 descriptors that tell us what the cerebral cortex looks like?
wrinkly outer covering; gray matter
200
What is it called when you bruise your brain or hit your head really hard?
concussion
200
What are two actions that are leg muscles help us do?
run jump walk skip gallop tippy toe
200
What is the center of a nerve cell?
cell body
200
What does the cerebellum control?
voluntary muscles
300
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
300
These muscles work automatically.
involuntary muscles
300
What are the stringy parts of that lead away from the cell body?
dendrites
300
What is another name for the medulla?
brain stem
400
What are the more than 30 smaller bones called that stack up to make the the spinal column?
vertebrae
400
These muscles are controlled by you.
voluntary muscles
400
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
400
What does the medulla control?
involuntary muscles
500
What are the three leg bones called?
femur tibia fibula
500
These two muscles are involuntary and are not controlled by you.
heart stomach
500
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
500
What are the three parts of the brain?
cerebellum cerebrum medulla






Unit 3 The Human Body

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