U2: 10- Hormonal Control Of Reproduction

Question 1

Name the glands that hormones are produced from.

Answer 1

Endocrine glands

Question 2

Which hormone is produced by the hypothalamus around puberty time which kick-starts the production of sperm?

Answer 2

Releaser hormone

Question 3

Where does releaser hormone travel to from the hypothalamus?

Answer 3

Pituitary gland

Question 4

Name the two hormones produced by the pituitary gland in males.

Answer 4

FSH and ICSH

Question 5

When FSH is released from the pituitary gland in males, where does it travel to?

Answer 5

Seminiferous tubules in the testes

Question 6

What do the seminiferous tubules make after being stimulated by FSH?

Answer 6

Sperm

Question 7

What does ICSH released from the pituitary gland do?

Answer 7

Stimulates the interstitial cells to produce testosterone

Question 8

What two jobs does testosterone do?

Answer 8

• stimulates the seminiferous tubules to make sperm

* activates the accessory glands

Question 9

When there is a build up of testosterone in males what happens?

Answer 9

Testosterone inhibits the production of FSH and ICSH from the pituitary gland

Question 10

When testosterone levels fall, the FSH and ICSH production is resumed following a period of being inhibited. What name is given to this type of regulation?

Answer 10

Negative feedback control

Question 11

Name the hormone released from the hypothalamus in females during puberty that kick starts the menstrual cycle.

Answer 11

Releaser hormone

Question 12

Name the two hormones that are released from the pituitary gland in females.

Answer 12

FSH and LH

Question 13

Name the hormone released by the pituitary gland that causes the development of an egg inside the follicle.

Answer 13

FSH

Question 14

What ovarian hormone is released by the ovary in response to an egg developing in the follicle?

Answer 14

Oestrogen

Question 15

What effect does oestrogen have on the endometrium?

Answer 15

Causes proliferation

Question 16

As oestrogen levels build up, it stimulates the pituitary gland to release which hormone?

Answer 16

LH

Question 17

What two events does LH being released from the pituitary gland cause?

Answer 17

• ovulation

* formation of corpus luteum from the follicle

Question 18

Name the hormone released by the corpus luteum as well as oestrogen.

Answer 18

Progesterone

Question 19

Which two hormones are classed as ovarian hormones?

Answer 19

Oestrogen and progesterone

Question 20

Progesterone travels to the endometrium and causes what to happen?

Answer 20

Vascularisation of the endometrium

Question 21

As progesterone builds up an inhibitory message is sent back to the pituitary gland to tell it to inhibit the production of which two hormones?

Answer 21

FSH and LH

Question 22

If FSH and LH levels drop what other two ovarian hormone levels will drop?

Answer 22

Oestrogen and progesterone

Question 23

What structure will break down if oestrogen and progesterone are not there to maintain it?

Answer 23

The endometrium- resulting in a period

Question 24

If fertilisation does occur, which hormone will be secreted by the embryo that will maintain the corpus luteum and allow it to continue to secrete oestrogen and progesterone?

Answer 24

HCG (human chorionic gonadotropin)

Question 25

Name the two phases of the menstrual cycle.

Answer 25

Follicular phase and luteal phase

Question 26

What name is given to the process of the release of an egg from the follicle?

Answer 26

Ovulation

Question 27

What events are described in the follicular phase of the menstrual cycle?

Answer 27

All the events up to ovulation

Question 28

What events are described in the luteal phase of the menstrual cycle?

Answer 28

All the events after ovulation up to the onset of a period