Related Experiment Video

Updated: Aug 5, 2026

Muscle Receptor Organs in the Crayfish Abdomen: A Student Laboratory Exercise in Proprioception
10:50

Muscle Receptor Organs in the Crayfish Abdomen: A Student Laboratory Exercise in Proprioception

Published on: November 18, 2010

[Coding of the degree of local muscle deformation by passive spindle receptors]

V I Zalkind

    Fiziologicheskii Zhurnal SSSR Imeni I. M. Sechenova
    |April 1, 1980
    PubMed

    More Related Videos

    Proprioception and Tension Receptors in Crab Limbs: Student Laboratory Exercises12:58

    Proprioception and Tension Receptors in Crab Limbs: Student Laboratory Exercises

    Published on: October 24, 2013

    An In Vitro Adult Mouse Muscle-nerve Preparation for Studying the Firing Properties of Muscle Afferents10:36

    An In Vitro Adult Mouse Muscle-nerve Preparation for Studying the Firing Properties of Muscle Afferents

    Published on: September 24, 2014

    Related Concept Videos

    Relaxation of Skeletal Muscles01:29

    Relaxation of Skeletal Muscles

    The period of muscle contraction primarily influences the duration of stimulation at the neuromuscular junction (NMJ), the presence of free calcium ions in the sarcoplasm, and the availability of energy or ATP to support contractions.
    When an action potential reaches the axon terminal, it depolarizes the membrane and opens voltage-gated sodium channels. Sodium ions enter the cell, further depolarizing the presynaptic membrane. This depolarization causes voltage-gated calcium channels to open.
    Motor Unit Stimulation01:20

    Motor Unit Stimulation

    When the neuron of a motor unit fires an action potential, it triggers a series of events, leading to a twitch contraction in the muscle fibers. The process of excitation-contraction coupling is crucial in relaying the action potential to the muscle fibers.
    The latent period of contraction marks the onset of excitation-contraction coupling, when the action potential propagates across the sarcolemma, preparing the muscle fibers for contraction. As the fibers enter the contraction phase, the...
    Overview of Somatic Sensory Pathways01:29

    Overview of Somatic Sensory Pathways

    Somatic sensory or somatosensory pathways refer to the neural pathways that carry information related to touch, pressure, pain, temperature, and proprioception from the skin, muscles, tendons, and joints to the brain. These pathways involve several stages of processing and integration of sensory information.
    The somatosensory system is divided into three main pathways: the dorsal (or posterior) column-medial lemniscus, spinothalamic (or anterolateral), and spinocerebellar pathways.
    The dorsal...
    Major Somatic Sensory Pathways01:28

    Major Somatic Sensory Pathways

    Sensory impulses related to touch, pressure, vibration, and proprioception from various body parts, such as the limbs, trunk, neck, and posterior head, travel to the cerebral cortex through the posterior column-medial lemniscus pathway. The pathway’s name derives from the two white-matter tracts that convey the impulses: the spinal cord's posterior column and the brainstem's medial lemniscus. First-order sensory neurons extend their axons into the spinal cord, forming the posterior columns...
    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...