The Menstrual Cycle involves the body preparing the uterus ( womb ) in case it receives a fertilised ovum ( egg ) which makes the lining ready.When there is no ovum the uterus lining is lost through woman's body
2 of 22
What are the FOUR hormones that control the cycle?
ovaries, by the remains of the follicle after ovulation
7 of 22
What is the role of Oestrogen in the cycle?
Causes lining of the uterus to grow + Stimulates the release of LH ( which causes the release of an egg )
8 of 22
What is the role of Progesterone in the cycle?
Maintains the lining of the uterus during the second half of the cycle. When the level of progesterone falls , the lining breaks down. Also inhibits the release of LH and FSH
9 of 22
What is the role of the placenta in the nutrition of the developing embryo?
The placenta lets the blood of the embryo and mother get very close to each other to allow the exchange of food, oxygen + waste products
10 of 22
What is the role of Oestrogen in the development of secondary sexual characteristics?
Oestrogen in woman causes 1) extra hair on the underarms and pubic area 2) hips widen 3)Development of breasts 4) Ovum release start of periods
11 of 22
What is the role of Testosterone in the development of secondary sexual characteristics ?
Testosterone in men causes 1) Extra hair on face + body 2) Muscles to develop 3) Penis + Testicles enlarge 4) Sperm production 5) Voice deepens
12 of 22
How does Amniotic Fluid protect the developing fetus?
The amnion membrane forms- this surrounds the embryo and is full of amniotic fluid. Amniotic fluids protects the baby against knocks + bumps
13 of 22
What hormone maintains the lining of the uterus ?
Progesterone
14 of 22
Which hormone causes LH to be released ?
Oestrogen
15 of 22
What hormone causes the development of the remains of the follicle into a corpus lutem ?
LH
16 of 22
Which hormone when at a low level causes the uterus lining to break down?
Progesterone
17 of 22
What hormone stimulates the production of oestrogen ?
FSH
18 of 22
What hormone causes follicles to mature?
FSH
19 of 22
What hormone inhibits the production of LH + FSH?
Progesterone
20 of 22
What hormone causes the release of an egg when the follicle ruptures ?
LH
21 of 22
What hormone causes the uterus lining to get thick + grow ?
Oestrogen
22 of 22
Other cards in this set
Card 2
Front
What is the Menstrual Cycle?
Back
The Menstrual Cycle involves the body preparing the uterus ( womb ) in case it receives a fertilised ovum ( egg ) which makes the lining ready.When there is no ovum the uterus lining is lost through woman's body
Card 3
Front
What are the FOUR hormones that control the cycle?
Comments
No comments have yet been made