Nerve Cord Dissection
Nerve Cord Dissection - Related Videos
12:23
Dissection and Culture of Commissural Neurons from Embryonic Spinal Cord
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Cited by 41 •
2010
This video demonstrates a method to dissect and culture commissural neurons from E13 rat dorsal spinal cord. Dissociated commissural neurons are useful to study the cellular and molecular mechanisms of axon growth and guidance.
20:14
Combining Peripheral Nerve Grafting and Matrix Modulation to Repair the Injured Rat Spinal Cord
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Cited by 21 •
2009
Traumatic injury to the spinal cord disrupts communication with the brain. To restore lost connectivity we utilize a peripheral nerve graft to provide a substratum for regenerating fibers in combination with neurotrophic factors and matrix-modulating enzymes to remove inhibitory molecules to promote long distance growth.
11:12
Whole Mount Preparation of the Adult Drosophila Ventral Nerve Cord for Giant Fiber Dye Injection
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Cited by 21 •
2011
An in vivo dissection of the adult Drosophila ventral nerve cord (VNC) is demonstrated. This particular dissection method causes little damage to the VNC allowing the subsequent labeling of the giant fiber neurons with fluorescent dye for high resolution imaging.
05:36
Dissection and Lateral Mounting of Zebrafish Embryos: Analysis of Spinal Cord Development
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Cited by 2 •
2014
Developmental processes such as proliferation, patterning, differentiation, and axon guidance can be readily modeled in the zebrafish spinal cord. In this article, we describe a mounting procedure for zebrafish embryos, which optimizes visualization of these events.
11:45
The Swimmeret System of Crayfish: A Practical Guide for the Dissection of the Nerve Cord and Extracellular Recordings of the Motor Pattern
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Cited by 5 •
2014
Here we describe the dissection of the crayfish abdominal nerve cord. We also demonstrate an electrophysiological technique to record fictive locomotion from swimmeret motor neurons.
FAQs
Preserving the cord’s structural integrity keeps neural circuits, axons, and associated cells in their native relationships. That continuity allows researchers to examine anatomical organization while retaining a preparation suitable for physiological study. If the tissue is damaged or disrupted during microsurgery, connections and cellular arrangements may no longer represent the organization needed to relate structure to circuit activity or behavior.
Removing external tissue exposes the nerve cord and makes its neural components directly accessible for observation and measurement. The process must balance clearance with tissue preservation: excess surrounding material can obstruct anatomical or physiological access, whereas overly disruptive manipulation can compromise the preparation. This controlled exposure supports subsequent imaging, staining, electrophysiology, or molecular assays.
The preparation permits researchers to study anatomical features and physiological activity in an accessible neural tissue sample. Structural observations can identify circuit organization, axonal arrangements, or associated cells, while physiological analyses examine activity within the exposed preparation. Considering these findings together helps investigate how cellular and circuit-level organization relates to nervous system function and behavior.
A basic workflow begins with positioning the specimen for microscopic access, viewing the nerve cord under a stereomicroscope, and carefully removing surrounding tissues. The operator then maintains the cord as an intact preparation for observation or downstream analysis. The central procedural goal is controlled exposure, so the tissue remains sufficiently preserved for anatomical, physiological, or molecular investigation.
After isolation, the preparation can support staining, imaging, electrophysiology, and molecular assays. These methods provide complementary information: staining and imaging reveal organization and cellular features, electrophysiology examines physiological activity, and molecular assays support analysis of molecular properties. Combining approaches allows investigators to evaluate the same neural preparation across structural, functional, and molecular levels.
Researchers can use this preparation to investigate nervous system organization, neuronal connectivity, development, and function. It is especially useful when neural tissue must be examined directly rather than inferred from surrounding structures. Findings from the isolated cord can also contribute to studies linking circuit properties with behavior, making the technique relevant to both cellular neuroscience and broader systems-level questions.