Men
The male gonads responsible for sperm and testosterone production.
Testes
The female gonads.
Ovaries
The diploid stem cells that give rise to sperm.
Spermatogonia
The ovarian phase that begins on day 1 of menstruation.
Follicular Phase
The hormone that stimulates follicle development.
FSH
Coiled tubules where sperm mature and gain motility.
Epididymis
The usual site of fertilization.
Uterine Tube or Fallopian Tube
The structure where spermatogenesis occurs.
Seminiferous Tubules
The hormone surge that triggers ovulation.
LH
The cell type that produces estrogen within the follicle.
Granulosa Cells
The tube that carries sperm from the epididymis to the ejaculatory duct.
Vas Deferens
The muscular organ where implantation occurs.
Uterus
The total number of sperm cells produced from one primary spermatocyte.
Four
The uterine phase associated with rebuilding the endometrium.
Proliferative Phase
The stage in which the primary oocyte becomes arrested until ovulation.
Prophase 1
The glands that secrete fructose-rich fluid to nourish sperm.
Seminal Vesicles
The fingerlike projections that help guide the oocyte into the uterine tube.
Fimbriae
The supportive cells that nourish developing sperm.
The hormone that maintains the uterine lining during the luteal phase.
Progesterone
The hypothalamic hormone that stimulates FSH and LH release.
GnRH
The cells in the testes that secrete testosterone.
Leydig Cells
The ovarian structure that forms after ovulation and secretes hormones.
Corpus Luteum
The barrier created by tight junctions between Sertoli cells.
Blood-Testis Barrier
The structure that degenerates if fertilization does not occur.
Corpus Luteum
The hormones in most birth control pills that prevent ovulation.
Estrogen and Progesterone