Reproduction responce TEST

Question 1

Menstrual cycle

Answer 1

Changes that occur in the lining of the endometrium

Question 2

Hypothalamus

Answer 2

Secretes gonadotropin releasing factors - carried to the anterior pituitary.

Question 3

Corpus lectum secretes..

Answer 3

Progesterone and some oestrogen.

Question 4

Purpose of Progesterone

Answer 4

Maintain lining of uterus in menstrual cycle

Question 5

Ovarian cycle

Answer 5

Maturation of secondary oocyte and formation of corpus leteum

Question 6

Lutenizing hormone (LH)

Answer 6

Causing graafian follicle to burst and relese secondary oocyte (ovulation)

Question 7

Follicle stimulating hormone (FHS)

Answer 7

Causes primary follicle to mature and complete meosis 1. Secretes oestrogen too.

Question 8

what happens to oestrogen levels when the follicle is developing

Answer 8

Becomes so high it inhibits Follicle stimulating hormone and lutenizing hormone increases.

Question 9

Oestrogen and progesterone levels drop before cycle starts again

Answer 9

Endometrium shed during the first days of cycle due to lack of progesterone

Question 10

Detection of ovulation

Answer 10

Rhythum method, mucus method, temperature meothod, coitus interruptus, mechanical barriers, spermicides, hormonal contraceptives, pill, sterilization

Question 11

Rhythm method

Answer 11

Assumes 28 day cycle with ovulation on day 14 - no hormonal changes

Question 12

Mucus method

Answer 12

Used to predict fertile window. after mensturation feels dry, ovulation approaches mucus develops, thick and cloudy, day of ovulation thin and stringy, sex considedred safe when there is no mucus

Question 13

Temperature method

Answer 13

Body temperature used to determine day of ovulation - sharp drop then rise

Question 14

Coitus interruptus

Answer 14

Removal of penis prior to male orgasm

Question 15

Male condom

Answer 15

Thin latex rubber roleld onto erect penis (prevent sperm entering and sti’s)

Question 16

Diaphragm

Answer 16

Rubber cap that fits across the top of the vagina

Question 17

Cervical cap

Answer 17

Smaller than diaphragm, fits over cervix

Question 18

Female condom

Answer 18

Lubricated sheat that fits over cervix

Question 19

Spermicides

Answer 19

Creams, gels, sprays, pessaries

Question 20

Hormonal comtraceptives

Answer 20

Combined pill, mini pill, injectables, implants, Intrauterine devices,

Question 21

The combined pill

Answer 21

Contains synthetic progesterone and estrogen. Prevents ovulation. Taken daily or levels drop

Question 22

Mini pill

Answer 22

Only contains synthetic progesterone. Thins lining of uterus so implantion cannot occur

Question 23

Injectables

Answer 23

Syntehtic progesterone injected into body - lasts 12 weeks. same as mini pill

Question 24

Implantion (Contraception)

Answer 24

Match stick containing synthetic progesterone - lasts 3 years.

Question 25

Vaginal rings

Answer 25

Left in vagina for 3 weeks then removef for 1 week. Progesterone and estrogen diffuses out.

Question 26

Intrauterine devides (IDU’s)

Answer 26

Made of plastic/copper & inserted into uterus. Slowly release progesterone - lasts 5 years

Question 27

Morning after pill

Answer 27

Progesterone tablet - taken up to 72 hours afer unprotected intercourse - prevents ovulation

Question 28

Vasectomy

Answer 28

Vas deferens severed

Question 29

Tubal ligation

Answer 29

Fallopian tubes severed and tied.

Question 30

Fertilisation

Answer 30

Fusion of male and female gamete.

Question 31

Growth after fertilisation

Answer 31

Zygote -> undergoes cleavage -> Morula -> undergoes mitosis -> Blastocyst -> Implantation

Question 32

Primary germ layers

Answer 32

Endoderm, Mesoderm, Ectoderm

Question 33

Amnion

Answer 33

Surrounds embryo and secrets amniotic fluid