Human Reproduction

Question 1

Oviduct- female

Answer 1

Fallopian tube

Leads from ovary to uterus

Question 2

Ovary-female

Answer 2

Produces eggs, attached to back wall of the abdominal cavity below the kidney

Question 3

Endomentrium-female

Answer 3

Inner lining of uterus

Question 4

Cervix-female

Answer 4

Neck of uterus

Question 5

Vagina-female

Answer 5

Muscular tube that opens to the outside

Question 6

Clitoris-female

Answer 6

Area very sensitive to stimulation

Question 7

Labia-female

Answer 7

Fleshy lobes that protect the opening of the vagina

Question 8

Prostate gland- male

Answer 8

Opens into the urethra and produces an alkaline fluid which neutralises urine

Question 9

Sperm duct- male

Answer 9

from the testis, opens into urethra

Question 10

Urethra-male

Answer 10

Passes down penis, both spern and urine pass through it

Question 11

Penis-male

Answer 11

Shaft of penis

Question 12

Epididymis-male

Answer 12

Leads to sperm duct

Question 13

Foreskin- male

Answer 13

Covers the glans (removed in circumcision)

Question 14

Glans-male

Answer 14

Head of penis, very sensitive to stimulation

Question 15

Testis-male

Answer 15

Bundle of sperm- producing tubes which join and lead to the epididymis

Question 16

Scrotum

Answer 16

Balls

Question 17

Seminal vesicle-male

Answer 17

Opens into the sperm duct and produces seminal fluid

Question 18

Testosterone

Answer 18

To trigger puberty in males which leads to sexual maturity

Question 19

Oestrogen

Answer 19

To trigger puberty in females which leads to sexual maturity

Question 20

Progesterone

Answer 20

To prepare the body for pregnancy

Question 21

Testosterone

Answer 21

To trigger puberty in males which leads to sexual maturity

Question 22

Oestrogen

Answer 22

To trigger puberty in females which leads to sexual maturity

Question 23

Progesterone

Answer 23

To prepare the body for pregnancy

Question 24

Testes are situated outside the body cavity. Why?

Answer 24

1. Protect from physical damage

2. Keeps them at a temperate 2-3°C lower than body temperature, ideal for development of the sperm

Question 25

Menstrual Cycle Day 1-5

Answer 25

• Menstruation (Blood and fragments of tissues shed through the vagina)
• Breakdown of endometrium
• Decrease Progesterone concentration

Question 26

Menstrual Cycle Day 6-12

Answer 26

• Repair phase
• Increase of Oestrogen concentration
• Oestrogen causes repair of endometrium
• Endometrium thickens up in preparation for implantation+pregnancy
• Follicle secretes Oestrogen

Question 27

Menstrual Cycle Day 13-15

Answer 27

• Ovulation(Ovum released into the oviduct
• Occurs at the peak of Oestrogen
• High levels of Oestrogen stimulate the release LH lead to Ovulation
• Receptive phase

Question 28

Menstrual Cycle Day 16-21

Answer 28

• Increase concentration of Progesterone
• Corpus luteum forms
• If Ovum is not fertilised then uterus lining starts to break down at end of cycle
• Embryo implanted

Question 29

Menstrual Cycle Day 22-28

Answer 29

• Premenstrual phase
• Decrease of progesterone, endometrium degenerates (not implanted)
• (If embryo implanted), progesterone keeps the endometrium intact to begin pregnancy, so placenta can develop
• Corpus luteum form and secrets progesterone

Question 30

Levels of Oestrogen in the 6 days after Ovulation

Answer 30

1. The concentration of Oestrogen decrease

2. Oestrogen level reaches a peak and then falls