Motor Axons
Motor Axons - Related Videos
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Visualization of the Axonal Projection Pattern of Embryonic Motor Neurons in Drosophila
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Cited by 4 •
2017
This work details a standard immunohistochemistry method to visualize motor neuron projections of late stage-16 Drosophila melanogaster embryos. The filleted preparation of fixed embryos stained with FasII antibody provides a powerful tool to characterize the genes required for motor axon pathfinding and target recognition during neural development.
03:57
Visualization of Axonal Projection Patterns of Embryonic Motor Neurons in Drosophila
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2025
Source: Jeong, S. Visualization of the Axonal Projection Pattern of Embryonic Motor Neurons in Drosophila. J. Vis. Exp. (2017)This video demonstrates the visualization of axonal projections in Drosophila embryos. Immunolabeling of motor neurons, precise dissection to expose neuronal structures, and differential interference contrast microscopy collectively reveal detailed neuronal architecture, emphasizing the axonal projection patterns.
03:00
Tracking Axonal Transport of Organelles in Motor Neurons Using a Microfluidic Device
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2025
This video demonstrates a method for tracking axonal transport in motor neurons using a microfluidic chamber system. It involves culturing mouse embryonic spinal cord tissues in polymer-coated wells with nutrient medium to induce axonal growth. The movement of fluorescent dye-stained organelles in live imaging, confirms the bidirectional axonal transport.
05:40
Visualizing Motor Neuron Projections and Axon Branching Using Light Sheet Fluorescence Microscopy
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2025
Source: Liau, E. S. et al. Visualization of Motor Axon Navigation and Quantification of Axon Arborization In Mouse Embryos Using Light Sheet Fluorescence Microscopy. J. Vis. Exp. (2018). This video demonstrates the use of light sheet fluorescence microscopy to image motor neuron projections and axon branching in transgenic mouse embryos. It outlines the steps involved in sample preparation, imaging, and 3D reconstruction of axonal branching for assessing motor neuron growth and connectivity.
10:12
Axonal Transport of Organelles in Motor Neuron Cultures using Microfluidic Chambers System
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Cited by 8 •
2020
Axonal transport is a crucial mechanism for motor neuron health. In this protocol we provide a detailed method for tracking the axonal transport of acidic compartments and mitochondria in motor neuron axons using microfluidic chambers.
FAQs
Their coordinated opening changes the electrical state of the axonal membrane, allowing an action potential to travel from the motor neuron toward its terminal. This process converts neuronal firing into a conducted signal rather than a local event. Studying it helps researchers relate ion-channel activity to reliable motor commands and coordinated movement.
When the action potential reaches the axon terminal, the terminal releases acetylcholine at the neuromuscular junction. This chemical signal then triggers contraction in the associated muscle fiber. Examining this transition is important because it links electrical activity in the nervous system with the muscle response required for motor control.
These features provide major perspectives for understanding how motor axons support movement and respond to injury. Organization helps researchers examine their role within neural circuits, while myelination and regenerative capacity are central to studies of peripheral nerve damage. Together, they connect axon biology with recovery and motor function.
Researchers examine motor axons in the context of amyotrophic lateral sclerosis, spinal cord damage, and peripheral neuropathies to clarify how these conditions affect movement-related neural pathways. Findings can support the development of diagnostic and therapeutic strategies, while also improving understanding of how disrupted motor systems produce impaired motor control.
Because motor axons carry commands originating in the brain and spinal cord, their organization can help researchers trace how neural circuits connect central commands with muscle activity. This perspective extends beyond the neuromuscular junction, supporting investigation of movement generation, motor control, and the pathways that coordinate actions.
Regeneration is important because damage to peripheral motor pathways can interfere with the transmission of commands to muscles and compromise movement. Studying regenerative processes helps neuroscience researchers investigate how motor axons respond after injury and may inform therapeutic strategies for restoring motor function following peripheral nerve damage.