| lateral column of spinal cord | A slight protrusion of the gray matter of the spinal cord into the lateral funiculus of either side, especially marked in the thoracic region where it encloses preganglionic motor neurons of the sympathetic division of the autonomic nervous system; it corresponds to the lateral horn appearing in transverse sections of the spinal cord. See: gray columns. Synonym: columna lateralis, lateral column of spinal cord. (05 Mar 2000) |
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| lateral funiculus of spinal cord | The lateral white column of the spinal cord between the lines of exit and entrance of the anterior and posterior nerve roots. Synonym: funiculus lateralis, anterolateral column of spinal cord, lateral funiculus of spinal cord. (05 Mar 2000) |
| lumbar enlargement of spinal cord | A spindle-shaped swelling of the spinal cord beginning at the level of the tenth thoracic vertebra and tapering into the medullary cone, with maximum thickness opposite the last thoracic vertebra, consequential to the innervation of the lower limb. Synonym: intumescentia lumbalis, lumbar enlargement of spinal cord. (05 Mar 2000) |
| lumbar part of spinal cord | Portion of spinal cord which consists of the five lumbar segments (L1-L5) and from which five pairs of lumbar spinal nerves originate; in the adult it is located in the T10-L1 portion of the vertebral canal, and is enlarged relative to other parts of the cord due to its involvement in innervation of the lower limb. (05 Mar 2000) |
| lumbar segments of spinal cord | The five lumbar segments of the spinal cord which give rise to the five pairs of lumbar spinal nerves and constitute the lumbar part of the spinal cord. Synonym: segmenta medullae spinalis lumbaria. (05 Mar 2000) |
| coccygeal cornua | Two processes that project upward from the dorsum of the base of the coccyx to articulate with the sacral cornua. Synonym: cornua coccygealia, coccygeal horn. (05 Mar 2000) |
| cornua | Plural of cornu. (05 Mar 2000) |
| cornua coccygealia | Two processes that project upward from the dorsum of the base of the coccyx to articulate with the sacral cornua. Synonym: cornua coccygealia, coccygeal horn. (05 Mar 2000) |
| cornua of falciform margin of saphenous opening | See: inferior horn of falciform margin of saphenous opening, superior horn of falciform margin of saphenous opening. (05 Mar 2000) |
| cornua of hyoid bone | See: greater horn of hyoid bone, lesser horn of hyoid bone. (05 Mar 2000) |
| cornua of lateral ventricle | See: anterior horn, inferior horn of lateral ventricle, cornu posterius ventriculi lateralis. (05 Mar 2000) |
| cornua of thyroid cartilage | See: inferior horn of thyroid cartilage, superior horn of thyroid cartilage. Cornu uteri, the portion of the uterus to which the intramural section of the uterine tube enters on either the right or left. Synonym: uterine horn, horn of uterus. (05 Mar 2000) |
| cornua sacralia | The most caudal parts of the intermediate sacral crest. On each side they form the lateral margin of the sacral hiatus and articulate with the coccygeal cornua. Synonym: cornua sacralia, sacral horns. (05 Mar 2000) |
| sacral cornua | The most caudal parts of the intermediate sacral crest. On each side they form the lateral margin of the sacral hiatus and articulate with the coccygeal cornua. Synonym: cornua sacralia, sacral horns. (05 Mar 2000) |
| gangliated cord | One of the two long ganglionated nerve strands alongside the vertebral column that extend from the base of the skull to the coccyx; they are connected to each spinal nerve by gray rami and receive fibres from the spinal cord through white rami connecting with the thoracic and upper lumbar spinal nerves. Synonym: truncus sympathicus, gangliated cord. (05 Mar 2000) |