(acrosome)
31Human fertilization — is the union of a human egg and sperm, usually occurring in the ampulla of the fallopian tube. It is also the initiation of prenatal development.Fertilization constitutes the penetration of the oocyte (egg) which the sperm performs, fusion of the …
32Complémentarité des gamètes (mammifères) — L étude d un gamète de mammifère de façon isolée ne permet pas de prendre toute la mesure de son implication dans le processus de reproduction. Il faut envisager les différentes spécificités de chaque gamète en les mettant en relation avec les… …
33GAMÈTES ET GAMÉTOGENÈSE — La reproduction sexuée des êtres vivants est l’œuvre de cellules spéciales, les gamètes. Des gamètes de sexe opposé se caractérisent par leur aptitude à s’apparier. L’union d’un gamète mâle et d’un gamète femelle réalise un zygote, ou cellule œuf …
34Organelle — A typical animal cell. Within the cytoplasm, the major organelles and cellular structures include: (1) nucleolus (2) nucleus (3) ribosome (4) vesicle (5) rough endoplasmic reticulum (6) Golgi apparatus …
35Spermatozoon — Infobox Anatomy Name = Spermatozoon Latin = |spermiusmatro GraySubject = 258 GrayPage = 1243 Caption = A sperm cell attempts to penetrate an ovum coat to fertilize it. Width = 350 Caption2 = Diagram of a human spermatozoon System = MeshName =… …
36List of biology topics — Biology is the study of life and its processes. Biologists study all aspects of living things, including all of the many life forms on earth and the processes in them that enable life. These basic processes include the harnessing of energy, the… …
37Zona pellucida — Infobox Anatomy Name = PAGENAME Latin = GraySubject = 3 GrayPage = 38 Caption = Caption2 = Human ovum. The zona pellucida is seen as a thick clear girdle surrounded by the cells of the corona radiata. Precursor = System = Artery = Vein = Nerve =… …
38Capacitation — This article is about a biological process related to reproduction; for the other use, see Capacitation (NGO). Capacitation is the penultimate [Essential Reproduction, Johnson, 6th edition, Blackwell Publishing] step in the maturation of… …
39Acrosin — protein Name=acrosin caption= width= HGNCid=126 Symbol=ACR AltSymbols= EntrezGene=49 OMIM=102480 RefSeq=NM 001097 UniProt=P10323 PDB= ECnumber=3.4.21.10 Chromosome=22 Arm=q Band=13.3 LocusSupplementaryData=Acrosin (EC number|3.4.21.10) is a… …
40Spermiogenesis — is the final stage of spermatogenesis which sees the maturation of spermatids into mature, motile spermatozoa.PhasesThe process of spermiogenesis is traditionally divided into four stages: the Golgi phase, the cap phase, the acrosomal phase, and… …
