4.5.3.3 hormones in human reproduction Flashcards
What are the secondary sexual characteristics caused by puberty in males / females?
In males - testes produce testosterone and sperm
In females - ovaries produce eggs and oestrogen
State female secondary sexual characteristics caused by puberty (7 different things)
- growth of hair and pubic hair
-development of breasts
-female pattern of fat distributed on the hips, buttocks and thighs - uterus grows, and active menstruation begins
-growth spurt
-brain matures
State male secondary sexual characteristics causes by puberty. (7 different things)
-growth of body and pubic hair
-external genitals grow
-testes grow and become activated, producing sperm throughout life
-shoulders and chest broadens as muscles develop
-growth spurt
-brain matures
When does the menstruation cycle occur within females?
12-50 years of age
What is oestrogen and where is it produced?
It is released in the ovaries and causes the lining of the uterus, (endometrium) to thicken again, after menstruation.
What is progesterone and where is it produced?
It is produced by the empty follicle in the ovary. This hormone maintains the lining of the uterus, preventing it from becoming too thick.
What does FSH stand for?
Follicle stimulating hormone
What is FSH and where is it produced?
It is secreted by the pituitary gland and causes the egg to mature in the ovaries; it also stimulates the ovaries to produce oestrogen.
What does LH stand for?
Luteinising hormone
What is LH and where is it produced?
It is secreted by the pituitary gland and causes the egg to be released from the ovaries, also stimulating the release of progesterone from the ovaries.
