Spinal Cord - B. Things to Note 1. Cord itself ends at...

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I. General Structure of Spinal Cord A. Principal Parts 1. 42-45 cm in length; 2.5 cm wide 2. cervical enlargement - C4:T1 supply upper limbs 3. lumbar enlargement - T9:T12 supply lower limbs 4. conus medullaris - tapers off to end at L1-L2 5. filum terminale - pia mater anchors cord to coccyx 6. cauda equina - (horse tail) nerves below L2
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Unformatted text preview: B. Things to Note 1. Cord itself ends at L1-L2 vertebrae 2. Lower nerves dangle down in the cauda equina 3. There are 31 pairs of spinal nerves 4. spinal segment- gives rise to one spinal nerve 5. C1-C7 spinal nerves project ABOVE C1-C7 vertebrae 6. C8 spinal nerve projects below C7 vertebra 7. T1-S5 spinal nerves project BELOW T1-S5 vertebrae...
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This note was uploaded on 01/29/2012 for the course SCIE SYG2000 taught by Professor Bernhardt during the Fall '10 term at Broward College.

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