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Related Concept Videos

The Neuromuscular Junction01:19

The Neuromuscular Junction

17.8K
The nervous system consists of complex motor neuron circuits, including upper motor neurons originating from the cerebral cortex and lower motor neurons starting in the spinal cord, coordinating both voluntary and involuntary movements. Among these, somatic motor neurons activate skeletal muscles and are classified into alpha, beta, and gamma types. Alpha neurons are vital for voluntary movement coordination, while gamma neurons adjust muscle spindle sensitivity, and the function of beta...
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Neuromuscular Junction And Blockade01:29

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The site of chemical communication between a motor neuron and a muscle fiber is called the neuromuscular junction (NMJ). The end of the motor neuron at the NMJ divides into a cluster of synaptic end bulbs. The cytoplasm of these bulbs consists of synaptic vesicles enclosing acetylcholine molecules, the principal neurotransmitter released at the NMJ. The region opposite the synaptic bulb that ends in the muscle fiber is called the motor end plate, which has acetylcholine receptors. Within the...
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Related Experiment Video

Updated: May 7, 2026

Generation of Human Motor Units with Functional Neuromuscular Junctions in Microfluidic Devices
10:48

Generation of Human Motor Units with Functional Neuromuscular Junctions in Microfluidic Devices

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Neuromuscular junction in a microfluidic device.

Hyun Sung Park, Su Liu, John McDonald

    Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference
    |October 11, 2013
    PubMed
    Summary
    This summary is machine-generated.

    This study developed a novel compartmentalized in vitro neuromuscular junction (NMJ) model using mouse embryonic stem cell-derived motor neurons and c2c12 myotubes. This advanced system aids research into NMJ disorders and functional recovery post-injury.

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    Area of Science:

    • Neuroscience
    • Biotechnology
    • Regenerative Medicine

    Background:

    • Neuromuscular junction (NMJ) dysfunction hinders functional recovery after injury or disease.
    • Motor neuron (MN) derivation from embryonic stem cells offers therapeutic promise.
    • Micro-technologies enable advanced neuronal culture platforms.

    Purpose of the Study:

    • To develop a compartmentalized in vitro model of the neuromuscular junction (NMJ).
    • To combine stem cell technology with microfluidics for advanced neural modeling.
    • To create a system for studying NMJ disorders and improving functional recovery.

    Main Methods:

    • Utilized mouse embryonic stem cell (mESC)-derived motor neurons (MNs).
    • Co-cultured MNs with c2c12 myotubes within a microfluidic device.
    • Employed a compartmentalized polydimethylsiloxane (PDMS) microfluidic system.

    Main Results:

    • Successfully established a functional in vitro NMJ model.
    • Demonstrated a microfluidic system for culturing and compartmentalizing neuronal components.
    • Provided a platform for studying NMJ pathophysiology.

    Conclusions:

    • The developed compartmentalized in vitro NMJ model represents an advancement in neural engineering.
    • This system facilitates research into NMJ-related diseases and potential therapeutic strategies.
    • It offers a valuable tool for investigating mechanisms of functional recovery at the NMJ.