muscle spindles การใช้

• This is because vibrations stimulate muscle spindles in the calf muscles.
• The afferent of the muscle spindle bifurcates in the spinal cord.
• These neurons also play a role in adjusting the sensitivity of muscle spindles.
• Muscle spindle derived GDNF neurotrophic factors must also be present for postnatal survival.
• The imbalance causes an inaccurate reading from muscle receptors in the muscle spindle.
• Gamma motor neurons assist in keeping the muscle spindle taut, thus adjusting sensitivity.
• When a muscle lengthens, the muscle spindle is stretched and its nerve activity increases.
• This process maintains the tautness of muscle spindles and is called alpha gamma co-activation.
• Without gamma motor neurons, muscle spindles would be very loose as the muscle contracts more.
• The parallel pulling keeps muscle spindles taut and readily able to detect minute changes in stretch.
• Proprioceptors ( muscle spindle and Golgi tendon organs ) provide information about joint position and muscle movement.
• Muscle spindles are distributed throughout the muscles and provide sensory feedback information to the central nervous system.
• This does not allow for muscle spindles to detect a precise amount of stretch since it is so limp.
• This leads to the stretching of muscle spindle, activation of alpha motor neurons and finally a partially contracted muscle.
• This also included studies of muscle spindles, which were published in 1897, before she finished her medical studies.
• The tone of respiratory muscle is believed to be modulated by muscle spindles via a reflex arc involving the spinal cord.
• Tests in mice have indicated that BACE proteases, specifically BACE1, are necessary for the proper function of muscle spindles.
• Secondary endings of muscle spindles detect changes in muscle length, and thus supply information regarding only the sense of position.
• Cold decreases muscle spindle fiber activity and slows nerve conduction velocity, therefore it is often used to decrease spasticity and muscle guarding.
• Signals from muscle spindles on the tongue travel through the hypoglossal nerve, moving onto the lingual nerve which synapses on the mesencephalic nucleus.