reproductive system

Question 1

Y chromosome genes

Answer 1

1. SRY; formation of testes
2. house keeping genes (puberty and testostorone production)
3. sperm production

Question 2

how is sex inherited

Answer 2

XX or XY

Question 3

scrotum

Answer 3

external sac containing testes (keep them 3c below body temp for optimum sperm production)

Question 4

testes

Answer 4

contains seminfierous tubules which produce spermatazoa

Question 5

penis

Answer 5

organ that introduces sperm int ovagina and contains erectile tissue that stiffens with blood

Question 6

vas deferens

Answer 6

sperm duct that connects penis to testes

Question 7

epdidymis

Answer 7

storage and maturation of sperm

Question 8

urethra (men)

Answer 8

tube for semen and urine

Question 9

seminal vesicle

Answer 9

produces mucus secretion that helps sperm movement

Question 10

prostate gland

Answer 10

produces alkaline solution to neutralize urine in urethra and aid sperm movement

Question 11

ovaries

Answer 11

produce egg/ovum which develop into follices

produce oestrogen and progesterone

Question 12

fallopian tubes

Answer 12

eg travels down tube to uterus, fertilization occurs here around the 3rd day

Question 13

uterus

Answer 13

site of implantation and embryo development. Muscular walls and mucous membrane

Question 14

endometrium

Answer 14

mucous membrane, well supplied with blood, where embryo implants itself

Question 15

vagina

Answer 15

site of penis acceptance and opening into the uterus through the cervix

Question 16

urethra (women)

Answer 16

separates tube for woman, expells urine from bladder

Question 17

invitro fertilization

Answer 17

• test tube babies
• FSH given to women to stimulate ovum production
• ovum surgically harvested and mixed with sperm in petri dish
• embryo that develops is placed into uterus
• for women with blocked ovaries/ men with low sperm count