Objective To study the orientational projections of sensory fibres of musculocutaneus nerves to the substantia gelationsa (SG) of the spinal cord in rats.

• 目的:研究大鼠肌皮神经感觉纤维在脊髓胶状质的定位投射。方法:按照跨神经节溃变的原理,采用酸性磷酸酶法。