Thoracic Lumbar Spinal Cord
Thoracic Lumbar Spinal Cord - Related Videos
04:14
Performing Thoracic Spinal Cord Hemisection Surgery in Rats
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2025
This video demonstrates the surgical procedure for performing a thoracic spinal cord hemisection in rats. It outlines the steps to expose the T8 spinal cord segment, perform the hemisection to disrupt neural tracts on one side, and provide post-operative care.
03:08
Spinal Cord Extraction: A Protocol to Isolate Murine Spinal Cord for In Vitro Studies
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2023
In this video, we describe a step-by-step protocol to isolate spinal cord from a mouse model for in vitro studies.
08:57
Acute and Chronic Tactile Sensory Testing after Spinal Cord Injury in Rats
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Cited by 55 •
2012
We describe two tactile sensory testing methods for acute or chronic periods of spinal cord injury in rats. These validated procedures can detect the development and maintenance of allodynia-like sensations.
05:24
In Vivo SiRNA Transfection and Gene Knockdown in Spinal Cord via Rapid Noninvasive Lumbar Intrathecal Injections in Mice
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Cited by 57 •
2014
This report describes a simple and rapid technique of intrathecal needle puncture for a localized transfection of siRNA in the lumbar spinal cord in mouse under short lasting light anesthesia.
05:59
Reproducable Paraplegia by Thoracic Aortic Occlusion in a Murine Model of Spinal Cord Ischemia-reperfusion
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Cited by 8 •
2014
The lack of mechanistic understanding of spinal cord ischemia-reperfusion injury has hindered further adjuncts to prevent paraplegia following high risk aortic operations. Thus, the development of animal models is imperative. This manuscript demonstrates reproducible lower extremity paralysis following thoracic aortic occlusion in a murine model.
FAQs
Information travels in two functionally different directions: sensory signals enter through dorsal roots, whereas motor commands exit through ventral roots. This arrangement separates incoming information from outgoing control before gray-matter circuits process or coordinate responses. The distinction helps investigators interpret how sensory input, motor output, posture, locomotion, and reflex activity are connected.
Gray-matter circuits provide local processing between incoming sensory signals and outgoing motor commands. Their activity helps link spinal inputs to coordinated responses involved in posture, locomotion, and reflexes rather than treating the cord as only a passive pathway between brain and body. This makes circuit organization a central focus of electrophysiology and neuroanatomical study.
Sympathetic neurons in thoracolumbar segments connect spinal organization with autonomic regulation. Their activity is relevant to functions of some internal organs, extending analysis beyond conscious movement and sensory processing. Studying these neurons alongside dorsal and ventral pathways helps clarify how the same spinal region contributes to visceral control as well as body coordination.
Motor commands and gray-matter processing support posture, locomotion, and reflexes, while sympathetic neurons provide pathways for autonomic regulation. Considering these functions together is important because a biological or clinical change in the region may affect movement-related control and internal-organ regulation rather than a single isolated output. This integrated view guides neuroanatomical analysis.
A study can examine its organization through neuroanatomy, track signal processing with electrophysiology, and consider how the region develops in developmental biology. Researchers can then relate dorsal-root sensory entry, ventral-root motor exit, gray-matter circuits, and sympathetic neurons to posture, locomotion, reflexes, or visceral control. This combination connects structure, activity, development, and function.
Analysis can reveal how injury affects pathways and circuits associated with sensory input, motor commands, reflexes, posture, locomotion, or autonomic regulation. Because the thoracic and lumbar segments participate in both body movement and some internal-organ functions, researchers can assess consequences across several functional domains. These observations also provide context for rehabilitation research.
Its defined pathways, gray-matter circuits, and sympathetic components provide several biological features to examine when evaluating neural repair. Research can ask whether sensory, motor, reflex, locomotor, or autonomic functions are preserved or improved. Linking anatomical organization with functional outcomes also supports rehabilitation studies aimed at understanding recovery after spinal cord injury.