Results: There were about 8893 motor fibers in C7, 3010 and 5883 in anterior and posteriordivision respectively.
结果：人类颈7神经根含运动纤维约8893根，其中前股3010根，后股5883根；
2
In cases where the posterior fontanel is identified, the division between the natural ostium and the fontanel should be resected to allow free communication between the two.