(a) Label the parts indicated by the guidelines 1 to 8.
(b) How does the uterus prepare for the reception of zygote?
(c) What happens to the uterus, if fertilization fails to take place?
(a)
The Fallopian tube is represented in Part 1.
Infundibulum is represented in Part 2.
Ureter is represented by Part 3
Vagina is represented by Part 4.
Ovary is represented in Part 5.
The Uterus is represented by part 6
The Urinary Bladder is represented by part 7.
Urethra is represented by Part 8.
(b) oestrogen secreted by the corpus luteum oestrogen secreted by the corpus luteum oestrogen secreted by the corpus luteum oestrog Oestrogen causes the endometrial wall of the uterus to thicken. The uterine membrane thickens and receives a lot of blood in order to receive the fertilised egg.
(c) The ovum disintegrates and the corpus luteum ceases generating progesterone if there is no fertilisation. As a result, on the 28th day, the thicker uterine lining begins to shed and blood is lost through the cervix and vaginal canal.