Lumbar enlargement
Encyclopedia
The lumbar enlargement gives attachment to the nerves which supply the lower limbs.
It commences about the level of T11, and reaches its maximum circumference, of about 33 mm., at L1 (lumbar vertebra), below which it tapers rapidly into the conus medullaris
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An analogous region for the upper limbs exists at the cervical enlargement
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It commences about the level of T11, and reaches its maximum circumference, of about 33 mm., at L1 (lumbar vertebra), below which it tapers rapidly into the conus medullaris
Conus medullaris
The conus medullaris is the terminal end of the spinal cord. It occurs near lumbar vertebral levels 1 and 2 . After the spinal cord tapers out, the spinal nerves continue as dangling nerve roots called cauda equina. This terminal nerve root tail is referred to as the filum terminale...
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An analogous region for the upper limbs exists at the cervical enlargement
Cervical enlargement
The cervical enlargement corresponds with the attachments of the large nerves which supply the upper limbs.It extends from about the third cervical to the second thoracic vertebra, its maximum circumference being on a level with the attachment of the sixth pair of cervical nerves.The reason behind...
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