A sperm cell develops from a sperm mother cell. 精细胞从精母细胞发育而成。
Some of the spermatogenic cells were displaying a state of delaying or degeneratingcompared with other spermatogenic cells of the same kind in their vicinity. 可见到曲细精管中个别区域的生精细胞与周围同类细胞发育不同步,有延迟或退化现象。