Cullheim S, Ulfhake B
Neurosci Lett. 1979 Jun;13(1):47-50. doi: 10.1016/0304-3940(79)90073-9.
Hindlimb gamma-motoneurons of adult cats were stained intracellularly with horseradish peroxidase. The gamma-motor-axons had intramedullary diameters between 2.0 micron and 2.4 micron and lacked recurrent collaterals. The conduction velocity of the gamma-motor-axons (20-29 m/sec) was close to what could be predicted from the relationship between conduction velocity and intramedullary diameter of much thicker adult alpha-motor-axons. However, the gamma-motor-axons were conducting much faster than alpha-motor-axons of 1-week-old kittens in spite of the fact that these two types of axons had about the same dimensions intramedullarly.
用辣根过氧化物酶对成年猫的后肢γ运动神经元进行细胞内染色。γ运动轴突的髓内直径在2.0微米至2.4微米之间，且没有返回侧支。γ运动轴突的传导速度（20 - 29米/秒）接近于根据更粗的成年α运动轴突的传导速度与髓内直径之间的关系所预测的值。然而，尽管这两种轴突在髓内的尺寸大致相同，但γ运动轴突的传导速度比1周龄小猫的α运动轴突快得多。
