Question

(a) Draw a sectional view of human female reproductive system and label the part where
(i) eggs develop
(ii) fertilsation take place.
(iii) fertilised egg gets implanted.
(b) Describe, in brief, the changes the uterus undergoes
(i) to receive the zygote.
(ii) if zygote is not formed.

Answer 1

(a) Sectional view of human female reproductive system `:`

Parts where `:`
(i) eggs develop -Ovary
(ii) fertilisation take place -Fallopian tubes
(iii) fertilised egg gets implanted -Uterus
(b) (i) The inner of the uterus becomes thick and soft with lots of blood capillaries before release of a fertilised egg (zygote). The uterus has to keep this zygote for further development and supply it with food, oxygen, etc.
(ii) If no fertilization occus then the thick uterus lining breaks down along with its bloods vessels in the form of vaginal bleeding called menstrual flow.