n.精子

原形：spermatozoon复数：spermatozoa

The spermatozoa are the motile sperm cells that fertilize female eggs during reproduction.
精子细胞在繁殖过程中使卵子受精。
Under a microscope, one can observe the intricate structure of a spermatozoon, with its head, midpiece, and tail.
在显微镜下，可以看到精子细胞的复杂结构，包括头部、中部和尾部。
The male reproductive system produces millions of spermatozoa daily to ensure fertility.
男性的生殖系统每天产生数百万个精子以保证生育能力。
A healthy spermatozoon must have a normal shape and motility for successful fertilization.
健康的精子细胞需要有正常形态和运动能力才能成功受精。
After ejaculation, spermatozoa swim through the cervix and into the uterus in search of an egg.
射精后，精子细胞会游过宫颈进入子宫寻找卵子。
Doctors can analyze a spermatozoa sample to assess male fertility and diagnose potential health issues.
医生可以分析精子样本来评估男性的生育能力和诊断可能的健康问题。
Spermatozoa are essential for the continuation of the human species, playing a vital role in sexual reproduction.
精子细胞对于人类物种的延续至关重要，在性繁殖中起着关键作用。
Some environmental factors can negatively impact spermatozoa count and quality, leading to infertility.
某些环境因素可能会对精子数量和质量产生负面影响，导致不孕。
In vitro fertilization (IVF) procedures often involve the extraction and manipulation of spermatozoa for assisted conception.
体外受精（IVF）程序通常涉及提取和处理精子细胞以辅助受孕。
The study of spermatozoa has advanced our understanding of genetics, evolution, and even human behavior.
精子细胞的研究深化了我们对遗传学、进化以及人类行为的理解。