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19 Cards in this Set
- Front
- Back
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What does CNS stand for?
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central nervous system
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What is the CNS composed of?
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brain & spinal cord
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What does the CNS act as for the entire nervous system?
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the control center
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What sensation is sent to the CNS?
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All sensory sensation
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What nerve impulses originate at the CNS?
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the ones that control muscles, organs, and glands
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What part of the CNS integrate information, controls skeletal muscles, and controls autonomic nervous system (ANS)?
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neural centers
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What do neural centers in the CNS do?
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integrate information,
control skeletal muscles, control ANS (autonomic nervous system) |
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How much does the brain of an adult approximately weigh?
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three pounds
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What is one of the largest organs in the body and where the CNS is found?
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the brain
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What percentage of the body's nerve tissue is found in the brain?
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98
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About how many nerve cells are found in the brain?
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10 billion
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What type of bones enclose the bone?
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cranial
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What is the tough connective tissue that covers the brain called?
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meninges
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What type of fluid surrounds the brain?
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cerebrospinal
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What does cerebrospinal fluid provide for the brain?
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cushioning
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What permits some substances to enter the brain cells or cerebrospinal fluid, and prohibits others?
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blood-brain barrier and blood-cerebrospinal fluid barrier
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What do the protective mechanisms in the brain protect the brain from?
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blows and harmful substances
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What are the functions of the brain?
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regulation and integration, the source of voluntary actions, interpreting sensory input, generating emotions, and it is the seat of higher mental processes
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What are the higher mental processes of the brain?
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perception, understanding, thought, reasoning, memory, and learning
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