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14 Cards in this Set
- Front
- Back
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Size and shape of canal in C T & Lumbar? |
Cervical - Larger, triangular, wider transverse Thoracic - small circular Lumbar - Larger than thoracic, usually triangular, narrow lateral recess (where nerve root passes through IVF) |
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Duramater runs from? |
foramen magnum to sacrum/coccyx |
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What separates the Arachnoid from Duramater and Piamater? |
Dura - sub-dural space with serous fluid Pia - sub-arachnoid space containing CSF |
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What are the two layers of Piamater? |
Inner- thin elastic fibres Outer - loose meshwork of collagen fibres |
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Piamater thickens between ant and post roots to form? |
dentate ligs |
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How many dentate ligs? Where do they finish? What is the function? |
20-21 T12-L1 anchor the spinal cord to the dura and protect from injury |
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Where is CSF produced? |
Choroid Plexus |
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Where do you find CSF? |
Subarachnoid space, in and around brain and spinal cord. |
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Hyrdomyelia? |
excess CSF in the central canal of spinal cord |
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syringomyelia |
CSF dissects into white matter forming cystic cavity |
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syringohydromyelia |
both of the above, excess CSF and CSF moving into white matter forming cysts. |
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What happens to the canal in flexion? extension? |
lengthened during flexion shortened during extension |
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What does the spinal cord do in extension to account for 70-75% of length change? |
Folds |
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Myelography? |
Procedure to add contrast agent to see deformities of dural sac/nerve roots |
