Unit 2.2 Hormonal control of Reproduction

Question 1

Glands that produces and released hormones

Answer 1

Endocrine gland

Question 2

Pituitary hormone that controls development of follicles in ovaries and sperm production in males

Answer 2

Follicle stimulating hormone (FSH)

Question 3

First stage in the menstrual cycle during which a follicle develops

Answer 3

Follicular phase

Question 4

Protein released by an endocrine gland into the blood that acts as a chemical messenger

Answer 4

Hormone

Question 5

Region of brain that secretes releaser hormone at puberty

Answer 5

Hypothalamus

Question 6

Pituitary hormone that stimulates interstitial cells to produce testosterone

Answer 6

ICSH

Question 7

Second stage of the menstrual cycle in which a corrupts luteum is present

Answer 7

Luteal phase

Question 8

Pituitary hormone that triggers ovulation and corpus luteum development

Answer 8

Luteinising hormone (LH)

Question 9

Approximately 28-day cycle in the middle of which ovulation occurs

Answer 9

Menstrual cycle

Question 10

Removal of the endometrium and an unfertilised egg at the end of a menstrual cycle

Answer 10

Menstruation

Question 11

Gland in the brain that releases many hormones

Answer 11

Pituitary gland

Question 12

What is the function of testosterone?

Answer 12

Stimulates sperm production and activates secretion from the prostate gland and seminal vesicle

Question 13

Pituitary hormone which stimulates sperm production in the seminiferous tubules

Answer 13

FSH

Question 14

Negative feedback of testosterone?

Answer 14

When the concentration of testosterone gets to a high level it inhibits the pituitary gland from secreting FSH & ICSH which in turn decreases testosterone concentration

Question 15

What is the action of oestrogen?

Answer 15

• Stimulates the proliferation of endometrium
• Stimulates cervix cells to secrete cervical mucus
• In high levels, it inhibits FSH, so no more follicles develop
• In high levels, it triggers a surge in LH

Question 16

Action of progesterone?

Answer 16

• Promotes further development and vascularisation of the endometrium
• In high levels, it inhibits the secretion of FSH & LH

Question 17

Function of FSH?

Answer 17

• stimulates development of the follicle

- stimulates follicle to secrete oestrogen

Question 18

Function of LH?

Answer 18

• LH triggers ovulation
• brings about development of corpus luteum
• stimulates corpus luteum to secrete progesterone