Words similar to extrafusal
Example sentences for: extrafusal
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Those afferents that exhibited a pause in discharge frequency as the extrafusal fibers contracted ("silent period") were classified as muscle spindles [ 24 25 ] . Primary muscle spindles were differentiated from secondary muscle spindles with the satisfaction of at least two out of three criteria tested on every afferent: 1) a conduction velocity > 75 m/sec; 2) an increase in discharge frequency at 100 μm displacement reflecting a low stretch threshold; 3) an abrupt decrease in frequency discharge at the end of stretch that returned to L init static discharge levels.
Afferents were classified as Golgi tendon organs if electrical stimulation of the adjacent extrafusal muscle fibers caused the receptor to increase its discharge frequency.
However, if the neighboring extrafusal fibers were stimulated to contract, they unload the tendon organ, thus bringing it to a subthreshold level.