Assignment: The Sperm and the Egg
This is a story about George the Sperm, and Kristi the Egg. Today will be a very exciting day for George and Kristi because they are going to get fertilized today. This is the day that they have been waiting on. Fertilization is the moment George and Kristi come together and a new begins to form. Kristi has been waiting for this day for 5 years, since her egg was produced when she was in the fetal ovaries, along with 3 others, but today she was the chosen one! George has also felt like he has won the lotto because he is the only one out 3 mobile sperm discharged today, in one ejaculation that will get to fertilize! George’s life begins in the seminiferous tubules, inside the testes. Before releasing himself he moves to the epididymis waiting for the great force that pushes him through the urethra. In the urethra he is mixed with a secretion from the prostate gland containing substances that facilitate his long adventure to the female ovum. From there George exits the penis into the vagina where his journey of fertilization begins. The portion of the follicle facing the abdominal cavity ruptures fairly rapidly and the fluid filling the follicle and containing millions of cells runs out. Inside the vast number of cells is the ovum. There Kristi is surrounded by thousands of cells that provide nourishment and protection for the journey. In the meantime, the Fallopian tubes have received signals to get ready to capture this precious cargo. The finger-like projections of the fallopian tube have captured Kristi, which is still surrounded by thousands of nutrient cells. Now Kristi is safe inside the Fallopian tube, where she will wait rather content while she ripens, preparing her for the meeting of George who has been on a long journey just to get to where she was. Inside the fallopian tubes is where fertilization will take place.
Fertilization time, George has been ejaculated against the opening of...