Anterior Median Fissure of the Spinal Cord

2020 ◽  
Author(s):  
Keyword(s):  
Spinal Cord ◽  
Anterior Median

Microangioarchitecture of the feline spinal cord

1987 ◽  
Vol 66 (3) ◽  
pp. 447-452 ◽  
Author(s):  
Yutaka Naka ◽  
Toru Itakura ◽  
Kunio Nakai ◽  
Kazuo Nakakita ◽  
Harumichi Imai ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Dorsal Surface ◽  
Ventral Surface ◽  
Anterior Spinal Artery ◽  
Corrosion Casts ◽  
Thoracic Spinal Cord ◽  
Content Type ◽  
Thoracic Spinal ◽  
Fine Print ◽  
Anterior Median

✓ The microangioarchitecture of corrosion casts of the cat spinal cord was studied by scanning electron microscopy. On the ventral surface of the spinal cord, the anterior spinal artery and the anterior spinal vein ran parallel along the anterior median fissure. Many central arteries branching from the anterior spinal artery coursed in a wavelike manner in the anterior median fissure. The number of central arteries was lowest in the thoracic spinal cord. Central arteries at some spinal cord levels revealed well-developed anastomoses with other central arteries in the anterior median fissure. These well-developed anastomotic central arteries were frequently observed in the thoracic spinal cord, in which the number of central arteries was lowest. On the dorsal surface of the spinal cord, the posterior spinal vein ran longitudinally at the midline and was drained by circumferential veins and posterior central veins. This vein formed a characteristic anastomotic plexus. Small arterioles (20 µm in diameter) in the spinal parenchyma revealed a ring-like compression at the branching site.

scholarly journals A pathway of NADPH diaphorase positivity between central canal and pial surface at anterior fissure in spinal cord: Supra fissure area with hypothesis configuring from dog, rat, monkey and pigeon

2020 ◽  
Author(s):  
Yunge Jia ◽  
Yinhua Li ◽  
Wei Hou ◽  
Fuhong Li ◽  
Haoran Sun ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Gray Matter ◽  
Anterior Commissure ◽  
Central Canal ◽  
Nadph Diaphorase ◽  
Thoracic Spinal Cord ◽  
Thoracic Spinal ◽  
Enzyme Histology ◽  
Aged Monkey ◽  
Anterior Median

ABSTRACTThe spinal cord is a cylinder structure in the vertebra and thought a simplified with the gray matter and white matter. Rexed lamination for the gray matter and regional sub-division for whiter matter are completely termed to date. Anterior commissure locates between the central canal and the anterior median fissure. However, some experimental data may still confront with new confined anatomical interpretation. By using NADPH diaphorase [N-d] enzyme histology, we found a vertical oriented neuronal pathway between the central canal and the anterior median fissure in the sacral spinal cord of young adult and aged dog. We used a term “supra fissure area” [SFA] to illustrate the region which consisted of the gray commissure and anterior white commissure. The N-d pathway was notably observable in aged animals. The vertical neurites revealed the cerebrospinal fluid [CSF] contacting neurites between the anterior median fissure and the central canal. We further examined the monkey, rat and pigeon in the region for better understanding of the structure and potential function. The neurodegeneration of N-d dystrophy was detected in the [SFA] in the thoracic spinal cord of the aged monkey. N-d positive fibers were detected in anterior fissure of the rat spinal cord. N-d fibrous structures were also detected in the pigeon spinal cord. These results suggested a new pathway of CSF contacting neurons and the neuronal communications about the central canal.

scholarly journals Evaluation of Morphological Patterns of Anterior Median Fissures in the Cervical Spinal Cord by Using Computed Tomography-Myelography

2016 ◽  
Vol 30 (3) ◽  
pp. 304-307
Author(s):  
Yuki Oichi ◽  
Junya Hanakita ◽  
Toshiyuki Takahashi ◽  
Manabu Minami ◽  
Taigo Kawaoka ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Spinal Cord ◽  
Cervical Spinal Cord ◽  
Morphological Patterns ◽  
Anterior Median

scholarly journals Morphological Patterns of the Anterior Median Fissure in the Cervical Spinal Cord Evaluated by Computed Tomography After Myelography

Neurospine ◽  
2018 ◽  
Vol 15 (4) ◽  
pp. 388-393 ◽  
Author(s):  
Yuki Oichi ◽  
Junya Hanakita ◽  
Toshiyuki Takahashi ◽  
Manabu Minami ◽  
Taigo Kawaoka ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Spinal Cord ◽  
Cervical Spinal Cord ◽  
Morphological Patterns ◽  
Anterior Median
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