Ключевые слова: acrosome, biology, cell, cellular, contraception, cortical, diagram, dna, egg, fecundation, female, fertile, fertility, fertilization, follicle, fusion, gametes, genetic, germ, gynecology, health, human, illustration, implantation, impregnation, infertility, male, medical, medicine, oocyte, ovulation, ovum, pregnancy, pregnant, reaction, reproduction, reproductive, research, science, system, woman, zygote,