ANATOMY

Detailed explanation-1: -Ovulation is spontaneously triggered about 36-40 hours after blood levels of a hormone called luteinizing hormone (LH) rise. This is called the LH surge. Once released from the ovary, the egg is picked up by and travels down the fallopian tube where it can meet sperm to become fertilized.

Detailed explanation-2: -The hypothalamus secretes GnRH in a pulsatile fashion, which triggers FSH and LH release from the anterior pituitary. These, in turn, act on the granulosa and theca cells in the ovary to stimulate follicle maturation and trigger ovulation.

Detailed explanation-3: -Ordinarily, it’s secreted at very low levels throughout your menstrual cycle. But once a developing egg follicle reaches a certain size-usually around the midpoint of your cycle-LH secretion surges to really high levels. This hormone surge is what triggers ovulation about 24 to 36 hours later.

Detailed explanation-4: -Leutinizing hormone (LH), the other reproductive pituitary hormone, aids in egg maturation and provides the hormonal trigger to cause ovulation and the release of eggs from the ovary.