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Anatomical studies on the ovine spinal cord
1Department of Preclinical Veterinary Studies, University of Zimbabwe, Harare.
Anatomischer Anzeiger
|January 1, 1990
Summary
Spinal cord segments vary in size and root attachment. Key segments like C3, T7, L5, and S1 show distinct characteristics in length, emergence, and diameter.
Area of Science:
- Veterinary Anatomy
- Comparative Neurology
Background:
- Understanding spinal cord segment topography is crucial for veterinary medicine.
- Variations in spinal cord dimensions and root emergence impact neurological function.
Purpose of the Study:
- To quantitatively analyze the morphometry of spinal cord segments in relation to vertebral levels.
- To identify specific spinal cord segments with notable dimensional and topographical features.
Main Methods:
- Measurements of root attachment length, root emergence length, interroot intervals, cord segment length, diameter, and cross-sectional area were performed.
- Analysis focused on specific cord segments: cranial cervical (C3), midthoracic (T7), caudal lumbar (L5), and cranial sacral (S1).
Main Results:
- Greater root attachment lengths were observed at C3, T7, L5, and S1 compared to caudal regions.
- Maximum root emergence lengths were at C3, T1, L4, and S1.
- Longest cord segments were C2, T13, L3, S1; shortest were C8, T1, L6, S4.
- Greatest diameter and cross-sectional area were found in the last cervical, first two thoracic, last lumbar, and first sacral segments.
Conclusions:
- Distinct topographical and dimensional characteristics exist for specific spinal cord segments across different regions.
- These findings provide valuable anatomical data for understanding spinal cord organization and potential clinical implications.