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12 Cards in this Set
- Front
- Back
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What are the 4 major functions of the cerebellum?
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Coordinates muscle contractions (smooth movements), adjusts skeletal muscle activity to maintain equilibrium and posture, maintains resting muscle tone by interacting with muslce spindle fibers in skeletal muscles, and broad role in some of the body's cognitive functions.
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How many layers does the cerebellum have?
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2: the cerebellar cortex and the white matter called arbor vitae (tree of life)
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How does the cerebellum ensure that skeletal muscle contraction follows the correct pattern leading to smooth, coordinated movements?
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Muscle memory, fine tunes muscle movements that originally were impulses for voluntary muscular movement in the cerebral cortex
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Where do impulses for voluntary muscular movement originate as a rough draft in and then are later coordinated by the cerebellum?
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cerebral cortex
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How does the cerebellum adust skeletal muscle activity to maintain equilibrium and posture?
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It receives proprioceptive (sensory) information from the muscles and joints and uses this information to regulate the body's position (i.e. - ability to stand on one foot)
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What does proprioceptive mean?
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sensory
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What can cause the cerebellar function to be impaired?
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Drinking alcohol especially and drugs
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What would you see in a person with cerebellar malfunction?
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ataxia, loss of balance and posture, and inability to detect proprioceptive information (closing the eyes and touching the nose)
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How does the cerebellum maintain resting muscle tone?
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By interacting with muscle spindle fibers in skeletal muscles
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Recent research indicates that the cerebellum also has a broader role in some of the body's cognitive functions including what?
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processing of language, music and other sensory stimuli
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Who would give a prescription for glasses?
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opthalmologist
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What type of tumor did the 5 year old boy have in the article "Why cant' he speak?", where was the tumor located and what did it affect?
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Medulloblastoma, a walnut-size tumor that was pressing upon the cerebellum and brain stem and blocking the flow of fluid, caused nausea and vomiting (from pushing on the brain stem, medulla, from vomiting) and caused loss of speech (music brought back his speech)
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