When Does Life Begin

1170 Words3 Pages

Birth is the only way which will preserve the human species from extinction and for the continuity of life. Although, the pregnancy and birth processes are complex, we need to know them and learn about them because of their importance. In this process the reproductive systems in the male and female are involved. They produce sex cells or gametes: the egg and the sperm. These systems are very essential to make almost identical new embryo cells to the parents, but each one of them differs from the other. The sperm carries half of the genetic information as chromosomes and transfers it to the embryo when the fertilization occurs and the egg, too. The sperm is produced by the male reproductive system after undergoing several phases or stages. Some of the male reproductive system’s organs are inside the body (internal), and the rest are external. The sperms are formed in the testicles which also release sexual hormones. Then the sperms grow in the epididymis and stay there for a few days. After that, the sperms move to the glands and form the semen via vas deferens. Finally, the ejaculation process which moves the sperms out from the body happens in the penis (Steven Dowshen, 2010). In females, the egg is considered as the feminine gamete and it carries the other half of the genes to the embryo as we mentioned before. The egg is released from the ovary, and then it is moved to the uterus through the fallopian tubes (Mangala Telang, 2007). The sperms will enter the feminine reproductive system by the vagina. In the first third of the fallopian tube, fertilization may happen. In the uterus, the zygote will be implanted (Keith L. Moore, 2008). This essay will explain the pregnancy, when the fetus starts living and to discuss some ethica...

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