Divisions of the Nervous System
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What are the two divisions of the nervous system?
Central Nervous System and Peripheral Nervous System
What is the traffic controller of the nervous system?
Central Nervous System
What division means “outside” or “edge”?
Peripheral Nervous System
What division represents the drivers and pedestrian in a street corner?
Peripheral Nervous System
What does the central nervous system consist of?
The brain and spinal cord
What is the control center of the body?
Central Nervous System
What regulates bodily activities and sends and receives messages to and from all body parts?
Central Nervous System
What is the most important part of the nervous system?
Brain
How heavy is the brain of an adult?
1.3 to 1.4 kilograms
What is the bony or cartilaginous case that encloses and protects the brain?
Skull
What does the thin layer of liquid between the brain and skull do?
It bathes the brain and acts like a shock absorber against sudden impact.
What are the three main parts of the brain?
The cerebrum, cerebellum, and brain stem
What is the largest, most important part of the brain and makes up 80 percent of the brain?
Cerebrum
Where do nerve impulses that allow you to think, remember, reason, speak, and solve problems?
Cerebrum
What controls most voluntary muscle contractions and identifies the information that the senses gather?
Cerebrum
What is the thin layer of tissue on the surface of the cerebrum?
Cerebral Cortex
What word means “rind” or “bark”?
Cortex
What is covered with folds and creases?
Cerebral Cortex
What is the brownish-gray neuron cell bodies?
Gray Matter
What is made up of primarily of axon tracts?
White Matter
What makes a part of the brain look white?
Myelin
What is found deep in the brain?
White Matter
What is found at the back of the brain and send impulses that help control balance and posture?
Cerebellum
What coordinates the movements of muscles in your eyes, arms, and hands?
Cerebellum