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第25章

生殖和发育

精子发生
Spermatogenesis is the process by which haploid sperm cells are produced in the male testes. It starts with stem cells located close to the outer rim…
卵子发生
In human women, oogenesis produces one mature egg cell or ovum for every precursor cell that enters meiosis. This process differs in two unique ways…
受精
During fertilization, an egg and sperm cell fuse to create a new diploid structure. In humans, the process occurs once the egg has been released from…
解理和爆破
After a large-single-celled zygote is produced via fertilization, the process of cleavage occurs while zygotes travel through the uterine tube.…
原肠胚形成
Gastrulation establishes the three primary tissues of an embryo: the ectoderm, mesoderm, and endoderm. This developmental process relies on a series…
神经胚形成
Neurulation is the embryological process which forms the precursors of the central nervous system and occurs after gastrulation has established the…
细胞迁移
Cell migration, the process by which cells move from one location to another, is essential for the proper development and viability of organisms…
判定
During embryogenesis, cells become progressively committed to different fates through a two-step process: specification followed by determination.…
裂殖酵母性生命周期的显微镜
The fission yeast Schizosaccharomyces pombe has been an invaluable model system in studying the regulation of the mitotic cell cycle progression, the…
马卵母细胞染色体分离,组蛋白乙酰化和主轴形态分析
The field of assisted reproduction has been developed to treat infertility in women, companion animals, and endangered species. In the horse,…
模型外科训练: 用逼真模拟器 Fetoscopic 激光光凝单绒毛膜 Diamniotic 双胎胎盘的技能习得
Fetoscopic laser coagulation of arterio-venous anastomoses (AVA) in a monochorionic placenta is the standard of care for twin-twin transfusion…

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