Flashcard Set Preview
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| 1 |
Outline the flow of CSF through the ventricular system.
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1. R and L. lateral ventricles (CSF made by choroid plexus)2. via Foramino of Monro3. 3rd ventricle...
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| 2 |
What meningeal layer subdivides the brain into areas (and name these divisions)?
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- the dura subdivides the brain into areas.1. falx cerebri: divides right and left cerebral...
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| 3 |
How does CSF drain into the dural venous sinuses?
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- arachnoid granulations protrude into venous sinuses, allowing CSF to filter back into the...
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| 4 |
What can cause epidural (b/t skull and dura) hematomas?
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- skull fractures or rupture of meningeal arteries
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| 5 |
what can cause bleeding in the subdural space (b/t dura and arachnoid)?
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- rupture of subarachnoid granulations
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| 6 |
what can cause bleeding in the subarachnoid space (where CSF circulates)?
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rupture of cerebral arteries
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| 7 |
What sensory input(s) does the STT (anterolateral system) deal with?
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pain, temp (light touch)
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| 8 |
What sensory input(s) does the MLS (dorsal column system) deal with?
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proprioception, vitration, discriminative touch
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| 9 |
At what level of the spinal cord is the STT largest? Smallest?
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largest - cervical cord - as more ascending fibers are added progressively up rostral...
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| 10 |
how does the location of the STT (now called spinal lemniscus) change once in the brainstem?
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- progressively moves posteriorly (rotates a bit too)
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| 11 |
what is the main function of the reticulospinal system (extramedullary pathway)?
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awake/alertness.
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| 12 |
What is the fasiculus gracilis?
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- dorsal columns of the MLS, more medial, carrying fibres from the legs and lower torso to...
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| 13 |
What is the fasiculus cnueatus?
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- dorsal columns of the MLS, carrying fibers from the upper torso and arms to the nucleus cuneatus-...
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| 14 |
What are the main Brodman's areas for the:- precentral gyrus (primary motor cortex)- secondary...
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primary motor cortex= 4secondary motor cortex = 6primary sensory cortex = 1,2,3primary visual...
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| 15 |
where is the sensory association cortex, what is its function and what is the major defect...
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- integration of sensory information. The sensory association cortex is in the parietal lobe,...
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