(a) Corpus luteum :
Secretion of mainly progesterone and small quantity of estrogen. Some androgens are also formed by theca cells.
(b) Endometrium :
Nourishment and implantation of blastoeyst and later foetus if fertilization has occurred. Otherwise cyclic changes of growth and degeneration.
(c) Acrosome :
Contains sperm lysin for separating cells of corona radiata and piercing through zona pellucida.
(d) Sperm Tail:
Vibratile part that helps in swimming of sperm in the genital tract of female for reaching the ovum.
(e) Fimbriae :
The finger like projection occurs at the edges of in fundibulum which helps in the collection of ovum after ovulation.
