The following is the illustration of the sequence of ovarian events (a - i) in human female.

(i) Identify the figure that illustrates ovulation and mention the stage of oogenesis it represents.
(ii) Name the ovarian hormone and the pituitary hormone that have caused the above mentioned event.
(iii) Explain the changes that occur in the uterus simultaneously in anticipation.
(iv) Write the difference between 'c' and 'h'
(v) Draw a labelled sketch of the structure of a human ovum prior to fertilization.

Explanation

(i) Stage of Oogenesis is represented by (D Mature Graafian follicle.
(ii) Ovarian hormone - Estrogen.
Pituitary hormone - Luteinsing hormone (LH)
(iii) Endometrium proliferate (glands become cork-screw shaped) highly vascularised with high degree of regeneration anticipating implantation of the fertilised ovum.
(iv) c-developing follicle, h-regressing corpus luteum. (v)