Which hormone assists in the synthesis of vitamin D?

What effect does progesterone have on the uterus during the luteal phase?

What is the primary function of the umbilical cord?

Which hormone is dominant during the secretory phase of the uterine cycle?

Which part of the sperm contains the genetic material?

Which phase of mitosis involves the condensation of chromatin into chromosomes?

Which structure connects the testes to the epididymis?

During which phase of mitosis do chromosomes align along the metaphase plate?

What hormone is primarily responsible for maintaining the endometrium during the luteal phase?

Which structure of the vulva is homologous to the male scrotum?