Hormones

Question 1

Where are FSH and LH produced?

Answer 1

> the pituitary gland

Question 2

What are the differences between nerves and hormones?

Answer 2

> nerves have a very fast action, hormones are slower

> nerves act for a very short time, hormones for a longer time

> nerves affect a very precise area, hormones act in a more general way.

Question 3

What is a hormone?

Answer 3

A chemical messenger that travels in the blood to activate target cells.

Question 4

What does FSH stand for?

Answer 4

Follicle Stimulating Hormone

Question 5

Where is oestrogen produced?

Answer 5

The ovaries

Question 6

What are the jobs of FSH?

Answer 6

It causes an egg to mature in the ovary

> stimulates the production of oestrogen

Question 7

What are the jobs of oestrogen?

Answer 7

> causes the lining of the womb to thicken

> stimulates the production of LH
inhibits the production of FSH

Question 8

What is the job of LH?

Answer 8

> causes an egg to be released from an ovary.

Question 9

Describe the menstrual cycle.

Answer 9

> day 1-5: lining of uterus breaks down and is bled out along with old egg.

> day 5-14: new egg matures and thick spongy lining is formed

> day 14: new egg is released

> day 14-28: lining is maintained

> day 28: cycle repeats