Relations (1)
Facts (4)
Sources
The Menstrual Cycle: How It Changes as You Age | Mount Sinai Today health.mountsinai.org 1 fact
procedureThe menstrual cycle proceeds in five steps: (1) The pituitary gland produces FSH, which signals the ovaries to produce estrogen. (2) When estrogen reaches a specific level for a set duration, the pituitary gland produces LH. (3) LH triggers ovulation, causing the ovary to release an egg into the fallopian tube. (4) The ovary produces progesterone to prepare the uterus for pregnancy. (5) If conception does not occur, hormone levels drop, the menstrual lining stops developing, and the lining is shed as a menstrual period.
Female Reproductive System | RESOLVE resolve.org 1 fact
claimThe endometrium responds to the hormone progesterone by becoming thick and spongy to receive an embryo; if implantation does not occur, the lining is shed during a menstrual period.
4 Phases of Menstrual Cycle: Hormone Changes Chart - Liv Hospital int.livhospital.com 1 fact
claimBefore a menstrual period begins, progesterone and estrogen levels rise to prepare the uterine lining; if pregnancy does not occur, these hormones drop sharply, which can cause premenstrual syndrome (PMS) symptoms.
Menstrual Cycle Phases: Decoding the Stages - Perelel perelelhealth.com 1 fact
claimIf pregnancy does not occur, estrogen and progesterone levels drop, causing the uterine lining to shed and triggering the menstrual period.