Human ovum, or egg, surrounded by numerous spermatozoa, computer illustration. In fertilisation, only a single sperm may successfully penetrate the ovum to fuse with the female nucleus. Barriers to be overcome include layers of follicular cells surrounding the ovum (corona radiata) and an underlying glycoprotein membrane, the zona pellucida. The membrane is digested by enzymes released from the acrosome, a cap on the head of the sperm: subsequent rapid chemical changes in the zona pellucida prevent competing sperm from entering. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/stock-photo-human-ovum-or-egg-surrounded-by-numerous-spermatozoa-computer-illustration-177496773.html
RFM8NJXD–Human ovum, or egg, surrounded by numerous spermatozoa, computer illustration. In fertilisation, only a single sperm may successfully penetrate the ovum to fuse with the female nucleus. Barriers to be overcome include layers of follicular cells surrounding the ovum (corona radiata) and an underlying glycoprotein membrane, the zona pellucida. The membrane is digested by enzymes released from the acrosome, a cap on the head of the sperm: subsequent rapid chemical changes in the zona pellucida prevent competing sperm from entering.
Normal phases of menstrual cycle, female reproductive system Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/normal-phases-of-menstrual-cycle-female-reproductive-system-image455027850.html
RF2HC88JJ–Normal phases of menstrual cycle, female reproductive system
Human Egg or Ovum structure for health education infographic illustration Stock Vectorhttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/human-egg-or-ovum-structure-for-health-education-infographic-illustration-image383799218.html
RF2D8BFPX–Human Egg or Ovum structure for health education infographic illustration
Human ovum, or egg, surrounded by numerous spermatozoa, computer illustration. In fertilisation, only a single sperm may successfully penetrate the ovum to fuse with the female nucleus. Barriers to be overcome include layers of follicular cells surrounding the ovum (corona radiata) and an underlying glycoprotein membrane, the zona pellucida. The membrane is digested by enzymes released from the acrosome, a cap on the head of the sperm: subsequent rapid chemical changes in the zona pellucida prevent competing sperm from entering. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/stock-photo-human-ovum-or-egg-surrounded-by-numerous-spermatozoa-computer-illustration-177496803.html
RFM8NJYF–Human ovum, or egg, surrounded by numerous spermatozoa, computer illustration. In fertilisation, only a single sperm may successfully penetrate the ovum to fuse with the female nucleus. Barriers to be overcome include layers of follicular cells surrounding the ovum (corona radiata) and an underlying glycoprotein membrane, the zona pellucida. The membrane is digested by enzymes released from the acrosome, a cap on the head of the sperm: subsequent rapid chemical changes in the zona pellucida prevent competing sperm from entering.
Secondary follicle, menstrual cycle, ovulation, normal structure (labeled) Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/secondary-follicle-menstrual-cycle-ovulation-normal-structure-labeled-image455027847.html
RF2HC88JF–Secondary follicle, menstrual cycle, ovulation, normal structure (labeled)
Human Egg or Ovum structure and Human Sperm or Spermatazoa for health education infographic illustration Stock Vectorhttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/human-egg-or-ovum-structure-and-human-sperm-or-spermatazoa-for-health-education-infographic-illustration-image383798475.html
RF2D8BETB–Human Egg or Ovum structure and Human Sperm or Spermatazoa for health education infographic illustration
Human ovum, or egg, surrounded by numerous spermatozoa, computer illustration. In fertilisation, only a single sperm may successfully penetrate the ovum to fuse with the female nucleus. Barriers to be overcome include layers of follicular cells surrounding the ovum (corona radiata) and an underlying glycoprotein membrane, the zona pellucida. The membrane is digested by enzymes released from the acrosome, a cap on the head of the sperm: subsequent rapid chemical changes in the zona pellucida prevent competing sperm from entering. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/stock-photo-human-ovum-or-egg-surrounded-by-numerous-spermatozoa-computer-illustration-177496785.html
RFM8NJXW–Human ovum, or egg, surrounded by numerous spermatozoa, computer illustration. In fertilisation, only a single sperm may successfully penetrate the ovum to fuse with the female nucleus. Barriers to be overcome include layers of follicular cells surrounding the ovum (corona radiata) and an underlying glycoprotein membrane, the zona pellucida. The membrane is digested by enzymes released from the acrosome, a cap on the head of the sperm: subsequent rapid chemical changes in the zona pellucida prevent competing sperm from entering.
Human Egg or Ovum structure and Human Sperm or Spermatazoa for health education infographic illustration Stock Vectorhttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/human-egg-or-ovum-structure-and-human-sperm-or-spermatazoa-for-health-education-infographic-illustration-image371873526.html
RF2CH08DA–Human Egg or Ovum structure and Human Sperm or Spermatazoa for health education infographic illustration
Human Egg or Ovum structure for health education infographic illustration Stock Vectorhttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/human-egg-or-ovum-structure-for-health-education-infographic-illustration-image386432808.html
RF2DCKEYM–Human Egg or Ovum structure for health education infographic illustration
Human Fertilisation and Embryonic Development illustration Stock Vectorhttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/human-fertilisation-and-embryonic-development-illustration-image383798491.html
RF2D8BETY–Human Fertilisation and Embryonic Development illustration
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