Term
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Definition
42-45 cm in adults
Is part of the CNS
found in vertebral foramen
comes from neural tube
distal to medulla oblongata
extended from foramen magnum to lower level of L1
(L3 in newborn) |
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Term
Where are the two swellings of the Spinal cord located?
(also called the intumiscentia) |
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Definition
Cervical (C4-T1) intumescentia
and
Lumbar (T11-L1) intumescentia
(these areas are thicker because the contain neurons of the brachial and limbo sacral plexus) |
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Term
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Definition
C1 Segment is ABOVE C1 vertebrae.
8 - Cervical, 12 - Thoracic, 5 - Lumbar, 5 - Sacral, 1 - Coccygeal (31 pairs of nerves) |
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Term
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Definition
Part of spinal cord where spinal roots originate from.
(SPINAL CORD ITSELF IS NOT SEGMENTED) |
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Term
|
Definition
Increase in size as you go down the vertebral column.
Foraminae decrease in size.
This meaning that L4/L5 are at risk for compression in disc hernia. |
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Term
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Definition
Point at which spinal cord terminates.
(Also ) |
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Term
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Definition
| Is the distal continuation of the Pia mater around the spinal cord. |
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Term
| Naming Spinal Nerve Roots |
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Definition
Normally name roots according to vertebrae above it.(EX: L4/L5 would be the L4 nerve root)
In the cervical region it goes according to the lower vertebrae. |
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Term
| Compression of the nerve roots |
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Definition
Postero-lateral to the discs you find the vertebral column containing the nerve roots so a herniation can cause nerve compression.
Zygophysial joints may degenerate causing osteoarthritus/osteophytes and may cause never compression.
These joints are NN by primary dorsal rami which also NN the skin of the skin and muscles of the back. |
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Term
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Definition
| The impermeable membrane between the dura and pia mater. |
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Term
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Definition
| Vascular membrane covering the spinal cord, brain gyri & sulci. |
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Term
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Definition
| External layer covering the brain and spinal cord. |
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Term
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Definition
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