Where does fertilization occur in humans? Explain the vents that occur during this process


  1. Ampullary Isthmic junction in fallopian tube.
  2. The perms come in contact with zona pellucida.
  3. Induces change in the membrane.
  4. blocks entry of other sperms/ensures only one sperm fertilizes the ovum prevents polyspermy.
  5. The secretion of acrosome helps the sperm to enter the cytoplasm.
  6. Entry of sperm induces completion of second meiotic division forming ovum and 2nd polar body.
  7. The haplaoid nucleus of sperm and that of ovum fuses.
  8. Formation of diploid Zygote, fertilization completed.