The following is the illustration of the sequence of ovarian events (a - 1) in a human female. (a) Identify the figure that illustrates ovulation and mention the stage of oogenesis it represents.
(b) Name the pituitary hormone that has caused the above mentioned event.
(c) Explain the changes that occur in the uterus simultaneously in anticipation
(d) Write the differences between 'c and 'h'.
(e ) Draw a labelled sketch of the structure of a human ovum prior to fertilization.

Explanation

(a)Figure 'f illustrates ovulation. It represents the ovulatory stage of oogenesis
(b) Luteinizing Hormone (LH) is the pituitary hormone released during ovulation
(c) In anticipation of receiving the fertilized egg. the endometrium of the uterus gets thickened and also the blood supply to the endometrium increases
(d) In the figure (c) stage represents the secondary follicle and the th) stage represents the degenerating corpus luteum