Oxytocin from maternal pituitary

Oxytocin from foetal pituitary

Relaxin from placenta

Estrogen from placenta

gets implanted into uterus 3 days after ovulation

gets nutrition from uterine endometiral secretion only after implanation

gets implanted in endometrium by the trophoblast cells

forms placenta even before implantation

Liver

Pancreas

Salivary glands

Male accessory glands

Acrosome has a conical pointed structure used for piercing and penetrating the egg, resulting in fertilisation

The sperm lysins in the acrosome dissolve th egg envelope facilitating fertilisation

Acrosome serves as a sensory structure leading the sperm towards the ovum

Acrosome serves no particular function