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180
there are two types of muscle spindles. name them
nuclear bags (muslce spindles congregated to bags in central portion)
nuclear chain (have nuclei alinged ina chain)
primary sensroy nerve endings excite both
secondary nerve endings ecxcite only nuclear chain
nuclear chain (have nuclei alinged ina chain)
primary sensroy nerve endings excite both
secondary nerve endings ecxcite only nuclear chain
