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单词 Muscle spindle
释义

Muscle spindle

英语例句库

Objective To investigate changes induced by hindlimb unloading in morphology of nerve endings in soleus muscle spindles.

目的观察后肢去负荷对大鼠比目鱼肌肌梭神经末梢形态的影响。

Results Nerve endings of muscle spindle in equatorial and polar regions were dyed black;intrafusal fibers were dyed buffy.

结果肌梭赤道部与两极部神经末梢呈棕黑色,清晰可见,梭内肌纤维染为棕黄色。

Muscle spindle is an important proprioceptor in the skeletal muscle, which contributes to the maintenance of muscular tension and the fine modulation of voluntary movements.

肌梭是骨骼肌内一种重要的本体感受器,参与肌紧张的维持和对随意运动的精细调节。

原声例句
连线杂志

When we tap your, let's say your patellar tendon that causes a stretch in a muscle spindle, this sends a signal back to the sensory neuron, which activates a motor neuron in the spinal cord to cause your knee to kick up.

当我们敲击你的,比方说你的髌骨腱,它会导致肌肉纺锤体的拉伸,这会向感觉神经元发送信号,这会激活脊髓中的运动神经元,使你的膝盖抬起。

英语百科

Muscle spindle

Mammalian muscle spindle showing typical position in a muscle (left), neuronal connections in spinal cord (middle) and expanded schematic (right).  The spindle is a stretch receptor with its own motor supply consisting of several intrafusal muscle fibres. The sensory endings of a primary (group Ia) afferent and a secondary (group II) afferent coil around the non-contractile central portions of the intrafusal fibres. Gamma motoneurons activate the intrafusal muscle fibres, changing the resting firing rate and stretch-sensitivity of the afferents. Animated version: Arthur Prochazka's Lab, University of Alberta
Light microscope photograph of a muscle spindle. HE stain.

Muscle spindles are sensory receptors within the belly of a muscle that primarily detect changes in the length of this muscle. They convey length information to the central nervous system via sensory neurons. This information can be processed by the brain to determine the position of body parts. The responses of muscle spindles to changes in length also play an important role in regulating the contraction of muscles, by activating motor neurons via the stretch reflex to resist muscle stretch.

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更新时间:2025/6/17 17:25:23