Sperm is the male reproductive cell. The main sperm function is to reach the ovum and fuse with it to deliver two sub-cellular structures. Sperm quantity and quality are the main parameters in semen quality, which is a measure of the ability of semen to accomplish fertilization. Thus, in humans, it is a measure of fertility in a man.
Semen, also known as seminal fluid, is an organic fluid that may contain spermatozoa. During the process of ejaculation, sperm passes through the ejaculatory ducts and mixes with fluids from the seminal vesicles, the prostate, and the bulbourethral glands to form the semen.
In human pregnancy, a developing fetus is considered as an embryo until the ninth week, fertilization age, or eleventh-week gestational age. After this time the embryo is referred to as a fetus.
An oocyte is a female gametocyte or germ cell involved in reproduction. An oocyte is the very beginning of human life – in the simplest of terms, it is an immature egg cell.
Fertility is the natural capability to produce offspring. Human fertility depends on factors of nutrition, sexual behavior, consanguinity, culture, instinct, endocrinology, timing, economics, way of life, and emotions.
infertility is the inability to become pregnant after two year of intercourse without contraception involving a male and female partner. Infertility may result from an issue with either you or your partner, or a combination of factors that prevent pregnancy. Fortunately, there are many safe and effective therapies that significantly improve your chances of getting pregnant.