B11- Fertility And Reproductive System Specific Flashcards
What happens during puberty?
During puberty rreproductive hormones cause secondary sexual charactersitics to develop.
What is the role of oestrogen?
Oestrogen is the main female reproductive hormone produced by the ovary. At puberty eggs begin to mature in the ovary and one is released approximately every 28 days at ovulation.
What is testosterone?
Testosterone is the main male reproductive hormone produced by the testes and stimulates sperm productive.
What are the three hormones invloved in the menstrual cycle of a woman?
Follicle stimulating hormone (FSH), Luetinising hormone (LH), oestrogen and progesterone.
What are the main changes of a girl during puberty?
The main changes include a growth spurt, the growth of hair under the arms and pubic hair, the breasts develop, the external genitals grow and the skin darkens, a female pattern of fat is deposited on the hips, buttocks, and thighs. The brain changes and matures, mature eggs start to form every month in the ovaries, the uterus grows and becomes active and menstruation begins.
What is ovulation?
Ovulation is a process after puberty in females. Each month, eggs begin to mature in the ovaries. At the same time, the uterus produces a thickened lining ready for a pregnancy. Every 28 days a mature egg is released.
The monthly period takes place at approximately what day intervals?
28-day intervals.
What happens during a period (in terms of the menstrual cycle)?
If the egg is not fertilised, around 14 days later the lining of the uterus is shed along with the egg.
What does FSH stand for?
Follicle stimulating hormone.
What is the job of FSH?
It stimulates the ovaries to make the female sex hormone oestrogen.
What does LH stand for?
Luteinising hormone
What is the job of LH?
It stimulates the release of the egg at ovulation on day 14.
Where is oestrogen produced?
Produced in the ovaries.
What is the role of oestrogen?
Oestrogen causes growth and repair of the uterus lining and wall.
Does oestrogen stimulate FSH?
IT INHIBITS FSH!!!!