The releasing of the mature egg is a process called
Ovulation is a phase in the menstrual cycle. It occurs at about day 14 of a day menstrual cycle. However, during days 10 to 14, only one of the developing follicles forms a fully mature egg. At about day 14 in the menstrual cycle, a sudden surge in luteinizing hormone causes the ovary to release its egg. The egg begins its five-day travel through a narrow, hollow structure called the fallopian tube to the uterus.
The ovaries are filled with follicles. Follicles are fluid-filled structures in which the oocyte also called egg grows to maturity. Current knowledge indicates that females are born with their entire lifetime supply of gametes. Females are not capable of making new eggs, and in fact, there is a continuous decline in the total number of eggs each month. Over the next years of a female's reproductive life, the entire egg supply will be depleted. Although no one can know with absolute certainty the number of eggs remaining within the ovaries at any given time, most women begin to experience a significant decrease in fertility the ability to conceive a child around the age of
This, along with other hormones follicle-stimulating hormone [FSH] and luteinising hormone [LH] encourage one of the ovaries to mature 10—20 eggs within their follicles. This releases a mature egg into your fallopian tube. The egg travels down the fallopian tube for several days, where it is potentially fertilised. If the egg is not fertilised, the endometrium will break down and a period will start.
The ovaries form part of the female reproductive system. Each woman has two ovaries. They are oval in shape, about four centimetres long and lie on either side of the womb uterus against the wall of the pelvis in a region known as the ovarian fossa. They are held in place by ligaments attached to the womb but are not directly attached to the rest of the female reproductive tract, e.