Ключевые слова: anatomy, baby, blastocyst, cell, cellular, development, diagram, division, egg, embryo, embryology, female, fertile, fertilisation, fertility, fertilization, fetal, flat, follicular, gamete, healthy, human, infertility, ivf, jelly, male, mammalian, man, medical, microbiology, morula, normal, nucleus, oocyte, ovule, ovum, pregnancy, pronucleus, reproduction, reproductive, scientific, sexual, silhouette, sperm, spermatozoa, stage, structure, system, zygote,