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関連する概念動画

Somatosensation01:33

Somatosensation

The somatosensory system relays sensory information from the skin, mucous membranes, limbs, and joints. Somatosensation is more familiarly known as the sense of touch. A typical somatosensory pathway includes three types of long neurons: primary, secondary, and tertiary. Primary neurons have cell bodies located near the spinal cord in groups of neurons called dorsal root ganglia. The sensory neurons of ganglia innervate designated areas of skin called dermatomes.
Sensory Modalities01:15

Sensory Modalities

Sensation typically is the process by which the sensory receptors and sense organs detect stimuli from the internal and external environment and transmit this information to the central nervous system for processing.
General senses refer to the broad category of sensory information detected by receptors in the body and can be further grouped into somatic and visceral senses. Somatic sensations include touch, pressure, temperature, and pain and are essential for navigating our environment and...
Introduction to Sensory Receptors01:31

Introduction to Sensory Receptors

Sensory receptors are vital in our ability to perceive and interpret the world. Sensory receptors are specialized cells in the peripheral nervous system that respond to various stimuli and enable one to experience different sensations. Based on specific criteria, sensory receptors are classified into distinct types.
The first classification criterion is based on cell type, position, and function. Some receptor cells are neurons with free nerve endings, where their dendrites are embedded in the...
Somatic Spinal Reflexes01:22

Somatic Spinal Reflexes

Somatic spinal reflexes are rapid, involuntary muscular responses to external stimuli that involve the somatic musculature and the spinal cord.
One of the most well-known somatic spinal reflexes is the stretch reflex, which is activated by the sudden stretching of a muscle. This reflex involves the activation of specialized sensory receptors called muscle spindles, which are located in the muscle tissue and detect changes in the length and speed of muscle contractions. When a muscle is suddenly...
Introduction to Special Senses01:26

Introduction to Special Senses

Sensory receptors play an integral part in comprehending our external and internal environments. They receive diverse stimuli, converting them into the nervous system's electrochemical signals. This conversion occurs as the stimulus alters the sensory neuron's cell membrane potential, instigating the generation of an action potential. This action potential is subsequently transmitted to the central nervous system (CNS), which integrates with other sensory data or higher cognitive functions.
Tactile and Chemical Senses01:27

Tactile and Chemical Senses

Tactile senses encompass touch, temperature, and pain, each mediated by specific receptors. Touch receptors detect mechanical energy or pressure against the skin. Sensory fibers from these receptors enter the spinal cord and relay information to the brain stem. Here, most fibers cross over to the opposite side of the brain. The touch information then moves to the thalamus, which projects a map of the body's surface onto the somatosensory areas of the parietal lobes in the cerebral cortex. This...

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関連する実験動画

Updated: Jun 27, 2026

Axon Stretch Growth: The Mechanotransduction of Neuronal Growth
11:46

Axon Stretch Growth: The Mechanotransduction of Neuronal Growth

Published on: August 10, 2011

ストレッチを感知することは,根本的なことです.

Neal D Epstein1, Julien S Davis

  • 1Molecular Physiology Section, Laboratory of Molecular Cardiology, NHLBI, NIH, Bethesda, MD 20892, USA. nepstein@helix.nih.gov

Cell
|January 30, 2003
PubMed
まとめ
この要約は機械生成です。

機械的なストレッチは心臓細胞に影響を与え,潜在的に心不全を引き起こす可能性があります. Zディスクタンパク質に関する新しい研究は,心臓細胞がどのようにストレッチを感知し,病気に適応するかを明らかにするかもしれない.

さらに関連する動画

Live Cell Imaging during Mechanical Stretch
07:42

Live Cell Imaging during Mechanical Stretch

Published on: August 19, 2015

Direct Linear Transformation for the Measurement of In-Situ Peripheral Nerve Strain During Stretching
06:26

Direct Linear Transformation for the Measurement of In-Situ Peripheral Nerve Strain During Stretching

Published on: January 12, 2024

関連する実験動画

Last Updated: Jun 27, 2026

Axon Stretch Growth: The Mechanotransduction of Neuronal Growth
11:46

Axon Stretch Growth: The Mechanotransduction of Neuronal Growth

Published on: August 10, 2011

Live Cell Imaging during Mechanical Stretch
07:42

Live Cell Imaging during Mechanical Stretch

Published on: August 19, 2015

Direct Linear Transformation for the Measurement of In-Situ Peripheral Nerve Strain During Stretching
06:26

Direct Linear Transformation for the Measurement of In-Situ Peripheral Nerve Strain During Stretching

Published on: January 12, 2024

科学分野:

  • 心血管生物学 心血管生物学
  • 機械生物学のメカノバイオロジー
  • 心臓生理学 心臓生理学

背景:

  • 機械的なストレッチは,心筋細胞生物学に影響を与える既知の要因です.
  • ストレッチによる心臓細胞の変化は,心不全の発症と関連しています.
  • 心筋細胞におけるストレッチセンシングと信号伝導の正確なメカニズムは,依然としてほとんど不明である.

研究 の 目的:

  • 心筋細胞におけるストレッチセンシングの基礎となる分子メカニズムを調査する.
  • 心臓のメカニカトランスデュークションにおけるZディスク要素の役割を調査する.
  • ストレッチセンシングが心臓の適応と疾患の進行とどのように関係しているかを理解する.

主な方法:

  • Zディスクタンパク質の機能と相互作用の分析.
  • 機械的なストレッチに対する細胞の反応を in vitro で調べる.
  • Zディスクの変異と心疾患を相関させる.

主要な成果:

  • 機械的な力を感知するZディスクの役割に関する新たな洞察.
  • ストレッチ信号伝導に関与する主要なZディスク要素の識別.
  • Zディスク機能障害と病的な心臓リモデリングの潜在的な関連性.

結論:

  • Zディスクは,機械的なストレッチを感知するための細胞機械の重要な構成要素です.
  • Zディスクのメカノバイオロジーを理解することは,心不全の病原性を探求するための新しい道を開きます.
  • Zディスク要素に関するさらなる研究は,心臓病の治療標的を明らかにする可能性がある.