segmenta medullae spinalis

[TA] segments of spinal cord: small sections of the spinal cord, to each of which is attached anterior and posterior roots of one of the 31 pairs of spinal nerves; there are 8 cervical, 12 thoracic, 5 lumbar, 5 sacral, and one or more coccygeal segments.

Segmenta medullae spinalis (segments of the spinal cord), comprising 8 cervical, 12 thoracic, 5 lumbar, 5 sacral, and 1 or more coccygeal segments; shown relative to the vertebrae.


Medical dictionary. 2011.

Look at other dictionaries:

  • segmenta lumbaria medullae spinalis — segmenta lumbalia; see under segmenta medullae spinalis …   Medical dictionary

  • pars lumbalis medullae spinalis — [TA] pars lumbaris medullae spinalis lumbar part of spinal cord: the part of the cord that is within the lower thoracic part of the vertebral canal (in adults) and gives rise to the five pairs of lumbar spinal nerves (segmenta lumbalia medullae… …   Medical dictionary

  • pars cervicalis medullae spinalis — [TA] cervical part of spinal cord: the part of the cord that is within the cervical part of the vertebral canal and gives rise to the eight pairs of cervical spinal nerves (segmenta cervicalia medullae spinalis [1–8]) …   Medical dictionary

  • pars coccygea medullae spinalis — [TA] coccygeal part of spinal cord: the part of the spinal cord that gives rise to the coccygeal spinal nerves (segmenta coccygea medullae spinalis [1–3]) …   Medical dictionary

  • pars sacralis medullae spinalis — [TA] sacral part of spinal cord: the part of the cord that is within the lumbar part of the vertebral canal and gives rise to the five pairs of sacral spinal nerves (segmenta sacralia medullae spinalis [1–5]) …   Medical dictionary

  • pars thoracica medullae spinalis — [TA] thoracic part of spinal cord: the part of the cord that is within the upper three fourths of the thoracic part of the vertebral canal (in the adult) and gives rise to the twelve pairs of thoracic spinal nerves (segmenta thoracica medullae… …   Medical dictionary

  • segmenta cervicalia [1–8] — the eight cervical segments; in official terminology the term is considered an alternative to pars cervicalis medullae spinalis (q.v.) …   Medical dictionary

  • segmenta thoracica [1–12] — the twelve thoracic segments; in official terminology, the term is considered an alternative to pars thoracica medullae spinalis (q.v.) …   Medical dictionary

  • segmenta lumbalia [1–5] — the five lumbar segments; in official terminology, the term is considered an alternative to pars lumbalis medullae spinalis (q.v.) …   Medical dictionary

  • segmenta sacralia [1–5] — the five sacral segments; in official terminology the term is considered an alternative to pars sacralis medullae spinalis (q.v.) …   Medical dictionary

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