Terminal Ganglia
Terminal Ganglia - Related Videos
04:01
Isolation of Cells from Sensory Ganglia
0 Views •
2025
This video demonstrates the isolation of cells from the sensory ganglia of mice. Ganglia are subjected to enzymatic digestion to dissolve the extracellular matrix. Single cells are then collected via filtering through a cell strainer followed by density gradient centrifugation for debris removal. Finally, washing and centrifugation are done to collect the isolated cells for future analysis.
01:44
Termination of Translation
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2020
The large ribosomal subunit has several important structures essential to translation. These include the peptidyl transferase center (PTC) - which is the site where the peptide bond is formed - and a large, internal, water-filled tube through which the nascent polypeptide moves. This latter structure is called the Peptide Exit Tunnel, and it begins at the PTC and spans the body of the large ribosomal subunit. During translation, as the nascent polypeptide chain is synthesized, it passes through...
15:16
Loading Drosophila Nerve Terminals with Calcium Indicators
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Cited by 17 •
2007
Calcium is a ubiquitous messenger in the nervous system, essential for triggering neurotransmitter release and changes in synaptic strength. Here we demonstrate a technique for loading Ca2+-indicators into Drosophila nerve terminals. We also demonstrate fabrication of the required apparatus and emphasize points critical for the technique's success.
02:57
Analyzing Tooth Germ and Trigeminal Ganglia Interactions Using a Microfluidic Co-culture System
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2025
This video demonstrates the utilization of a microfluidic device to study the interactions between tooth germ pulp and trigeminal ganglia. It showcases the placement of tissues inside the microfluidic device and provides a detailed visualization of trigeminal neurite growth toward the tooth germ through the device's microgrooves. Additionally, it highlights the role of tooth-derived molecular factors in promoting or inhibiting neurite extension into the tooth germ pulp, which is crucial for...
09:11
Aplysia Ganglia Preparation for Electrophysiological and Molecular Analyses of Single Neurons
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Cited by 9 •
2014
Marine snail Aplysia californica has been widely used as a neurobiology model for the studies on cellular and molecular basis of behavior. Here a methodology is described for exploring the nervous system of Aplysia for the electrophysiological and molecular analyses of single neurons of identified neural circuitry.
FAQs
Terminal ganglia integrate two principal sources of information: signals from sensory receptors in nearby body regions and descending pathways from other parts of the nervous system. Interneurons process these inputs before transmitting coordinated signals to motor neurons. This arrangement allows local conditions and broader neural commands to influence abdominal muscles, appendages, and related behaviors.
Interneurons provide the processing stage between incoming sensory or descending signals and outgoing motor commands. By regulating how information reaches motor neurons, they help transform neural input into organized activity in abdominal muscles and appendages. Their position within the circuit makes terminal ganglia useful for examining how sensorimotor information is converted into behavior.
Their compact organization brings sensory inputs, interneuronal processing, and motor outputs into a relatively focused neural system. This structure helps researchers examine how information is integrated and converted into movement or behavioral control. The same circuits also provide a framework for considering broader principles of nervous-system function and the evolution of neural organization.
Local sensory receptors provide information from terminal body segments, while descending pathways convey signals from elsewhere in the nervous system. Processing within the ganglia can therefore connect immediate sensory conditions with broader neural control. The resulting motor activity may regulate abdominal movement, appendage use, or behaviors such as escape, grooming, locomotion, and mating.
Studies of these circuits can clarify how neural activity contributes to locomotion, grooming, mating, and escape responses in insects and other arthropods. Researchers can relate sensory inputs and descending signals to the motor activity that controls abdominal muscles and appendages. This connects circuit organization with observable behavioral outcomes rather than examining neural components in isolation.
Terminal ganglia offer a compact context for investigating general relationships among sensory information, interneuronal processing, motor output, and behavioral control. Findings from this system can inform broader questions about nervous-system function and evolution. Their relevance extends beyond individual behaviors because the circuits illustrate how neural organization supports coordinated actions in an invertebrate body.