Maxwell D J, Fyffe R E, Brown A G
Neuroscience. 1984 May;12(1):151-63. doi: 10.1016/0306-4522(84)90144-1.
Spinocervical tract neurons in the dorsal horn of the cat spinal cord were intracellularly stained with horseradish peroxidase. The neurons came from one intact animal and from animals with dorsal rhizotomies (L3-S2) 3, 5, 10, 28 and 42 days previously. The morphology of terminals associated with spinocervical tract neurons was examined in a combined light and electron microscopical study. Some terminals containing agranular, circular vesicles degenerated as a result of deafferentation; these are therefore the terminals forming monosynaptic inputs to the neurons from primary afferent fibres. Other terminals containing agranular circular vesicles and terminals containing ovoid agranular vesicles survived deafferentation; these boutons therefore do not originate from primary afferent fibres.
用辣根过氧化物酶对猫脊髓背角的脊髓颈束神经元进行细胞内染色。这些神经元来自一只完整的动物以及之前3、5、10、28和42天进行过背根切断术（L3 - S2）的动物。在一项光镜和电镜联合研究中，对与脊髓颈束神经元相关的终末形态进行了检查。一些含有无颗粒圆形小泡的终末因去传入作用而退化；因此，这些是来自初级传入纤维形成对神经元单突触输入的终末。其他含有无颗粒圆形小泡的终末和含有椭圆形无颗粒小泡的终末在去传入作用后存活下来；所以这些轴突终扣并非起源于初级传入纤维。
