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Hormones in the Menstrual Cycle. Ana Nouel, Heleny Cadenas , Mandi Atencio. Hormones Involved. Follicle Stimulating Hormones (FSH) and Luteinizing Hormone (LH)- released in the pituitary gland.
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Hormones in the Menstrual Cycle Ana Nouel, HelenyCadenas, MandiAtencio
Hormones Involved • Follicle Stimulating Hormones (FSH) and Luteinizing Hormone (LH)- released in the pituitary gland. • Estrogen- Development of the female secondary sexual characteristics and control of the menstrual cycle. • Progesterone- Regulates activity in female reproductive organs during menstrual cycle and pregnancy.
Process of Menstrual Cycle • The pituitary gland releases the FSH hormone. • FSH is secreted into the blood stream and enters the ovaries where the follicle then produces an ovum (egg). • The follicle then releases estrogen to prepare the release of the ovum and the uterine linen thickens.
Process Continued… • After about 2 weeks the production of FSH stops and LH is produced. • LH is then transported through the blood stream to the ovaries to stimulate ovulation in the follicle. • The remains of the follicle are then transported to the corpus luteum, a temporary endocrine gland, where progesterone is secreted.
Process Continued… • The progesterone causes an ovum to travel to the uterus and the uterine wall. • If the ovum is not fertilized the corpus luteum breaks down, the ovum degenerates and menstruation begins. • Menstruation washes away the ovum and the uterine lining. • If the ovum is fertilized it embeds to the uterine wall and the overall hormone levels rise.
Questions • Where is FSH and LH produced? • What hormone does FSH cause the production of? • When is progesterone secreted and what is its function? • What happens when an ovum is not fertilized?