Ovarian Cycle

Ovarian and Endometrial Cycles

• The pituitary gland releases hormones that regulate the ovarian and endometrial cycles in females
• The ovarian cycle lasts approximately 28 days
• The endometrial cycle is synchronized with the ovarian cycle and also lasts approximately 28 days
• The ovarian and endometrial cycles typically begin in females around age 10-12
• A female is born with approximately 1-2 million primary follicles
• Only one primary follicle reaches maturity during each ovarian cycle
• The purpose of the ovarian cycle is to prepare the body for a possible pregnancy
• Menopause, the cessation of ovulation, typically occurs in females between the ages of 45 and 55
• Ovulation occurs during the follicular phase of the ovarian cycle
• FSH (follicle-stimulating hormone) stimulates the secretion of estrogen from the ovary
• The corpus luteum is responsible for secreting progesterone, which prepares the uterus for implantation
• Progesterone has a negative feedback effect on the pituitary gland to stop secreting LH and FSH
• If fertilization does not occur, the corpus luteum degenerates
• The anterior pituitary gland secretes FSH, LH, prolactin and TSH
• After ovulation, the ovum has approximately 12-24 hours to unite with a sperm in the uterine tube

Test your knowledge of the female reproductive cycle with this quiz! Learn about the ovarian and endometrial cycles, hormone regulation, and the stages of development from puberty to menopause. Perfect for understanding the intricate processes involved in preparing the body for fertilization and pregnancy.