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関連する概念動画

Motor Units00:46

Motor Units

A motor unit consists of two main components: a single efferent motor neuron (i.e., a neuron that carries impulses away from the central nervous system) and all of the muscle fibers it innervates. The motor neuron may innervate multiple muscle fibers, which are single cells, but only one motor neuron innervates a single muscle fiber.
Motor Units01:13

Motor Units

The motor unit is a fundamental component of the neuromuscular system and plays a crucial role in coordinating muscle contractions. It consists of a somatic motor neuron, which connects and controls multiple skeletal muscle fibers, forming a single functional segment. The axon of the motor neuron branches out and establishes synaptic connections known as neuromuscular junctions with individual muscle fibers within the motor unit.
Motor units come in different sizes, with smaller units...
Hierarchy of Motor Control01:18

Hierarchy of Motor Control

The hierarchy of motor control refers to the different levels of organization and processing involved in controlling movement in the body. These levels range from higher cortical areas involved in planning and decision-making to lower spinal cord reflexes that respond automatically to external stimuli.
Indirect Motor Pathways01:22

Indirect Motor Pathways

The indirect motor or extrapyramidal pathways originate in the brainstem, the lower portion of the brain that connects it to the spinal cord. They consist of several distinct tracts, each with specialized functions. The four main tracts of the indirect motor pathways are the vestibulospinal tract, the reticulospinal tract, the tectospinal tract, and the rubrospinal tract.
The vestibulospinal tract originates in the vestibular nuclei of the brainstem. The vestibular system detects changes in...
Mechanical Systems01:22

Mechanical Systems

Mechanical systems are analogous to to electrical networks where springs and masses play similar roles to inductors and capacitors, respectively. A viscous damper in mechanical systems functions similarly to a resistor in electrical networks, dissipating energy. The forces acting on a mass in such systems include an applied force in the direction of motion, counteracted by forces from the spring, a viscous damper, and the mass's acceleration. This interplay of forces is mathematically described...
Sequence Networks of Rotating Machines01:24

Sequence Networks of Rotating Machines

A Y-connected synchronous generator, grounded through a neutral impedance, is designed to produce balanced internal phase voltages with only positive-sequence components. The generator's sequence networks include a source voltage that is exclusively in the positive-sequence network. The sequence components of line-to-ground voltages at the generator terminals illustrate this configuration.
Zero-sequence current induces a voltage drop across the generator's neutral impedance and other...

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Updated: Jun 2, 2026

A Novel Single Animal Motor Function Tracking System Using Simple, Readily Available Software
08:22

A Novel Single Animal Motor Function Tracking System Using Simple, Readily Available Software

Published on: August 31, 2018

モーターパターンの生成に対する小型システムアプローチ.

Michael P Nusbaum1, Mark P Beenhakker

  • 1Department of Neuroscience, University of Pennsylvania School of Medicine, Philadelphia 19104-6074, USA. msbaum@mail.med.upenn.edu

Nature
|May 17, 2002
PubMed
まとめ
この要約は機械生成です。

神経科学の研究は,ニューロンネットワークがどのように協調した動きを生み出すかを探求しています. 甲殻類の胃口神経系は,細胞レベルでリズムモーター回路の動作に関する重要な洞察を提供します.

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A Rapid Method for Modeling a Variable Cycle Engine
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A Rapid Method for Modeling a Variable Cycle Engine

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Pattern Generation for Micropattern Traction Microscopy
09:26

Pattern Generation for Micropattern Traction Microscopy

Published on: February 17, 2022

関連する実験動画

Last Updated: Jun 2, 2026

A Novel Single Animal Motor Function Tracking System Using Simple, Readily Available Software
08:22

A Novel Single Animal Motor Function Tracking System Using Simple, Readily Available Software

Published on: August 31, 2018

A Rapid Method for Modeling a Variable Cycle Engine
04:58

A Rapid Method for Modeling a Variable Cycle Engine

Published on: August 13, 2019

Pattern Generation for Micropattern Traction Microscopy
09:26

Pattern Generation for Micropattern Traction Microscopy

Published on: February 17, 2022

科学分野:

  • 神経科学は神経科学である.
  • モーター・コントロール・コントロール
  • 甲殻類の生物学について

背景:

  • ニューロンネットワークによる協調運動生成を理解することは,神経科学の中心的な目標です.
  • 十足の甲殻類の口胃神経系 (STN) は,運動回路を研究するための貴重なモデルを提供します.
  • このシステムは,リズム的な動きに不可欠な,相互に作用する明確なモーター回路で構成されています.

研究 の 目的:

  • 細胞レベルでリズムモーター回路の動作の原理を解明する.
  • STNでモーターパターンの生成を担当する回路のダイナミクスを詳細に説明します.
  • STN機能に対する個々のトランスミッターとニューロンの調節効果を調査する.

主な方法:

  • 胃口神経系の回路ダイナミクスの詳細な文書化.
  • モーターパターンの生成メカニズムの分析.
  • 特定のトランスミッターとニューロンによる神経調節の調査.

主要な成果:

  • STNは,細胞レベルのリズムモーター回路操作の理解を大幅に進めてきました.
  • 詳細なドキュメントは,モーターパターン生成の基礎となる回路ダイナミクスを明らかにしました.
  • 個々のトランスミッターやニューロンによる調節が広く特徴づけられた.

結論:

  • 胃口神経系は,運動の神経制御の基本的な原理を理解するための強力なモデルです.
  • STNの細胞レベルの分析は,モーター回路の機能に関する一般化可能な洞察を提供します.
  • 神経調節は,リズムモーターの出力を形成する上で重要な役割を果たします.