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the musle spindle detects change in length and sends sensory information back to the spianl cord. by which two afferent fibres does it do that?
primary endings ( 1a afferent) wrapped around cetnral portion of intrafdusal fibres) detect change in length and speed during strecht
secondary nerve endings (type 2 ) are clustered around the end segments of the fibres and are only sensitive to change in length
secondary nerve endings (type 2 ) are clustered around the end segments of the fibres and are only sensitive to change in length
