ovary and testis human cells under microscope.

anatomical anatomy background biology cell cells cervix duct education egg epididymis female fertility fertilization gynecology healthcare histological histology human laboratory leydig macro magnification medical medicine micro microcosm microscope microscopen microscopic nucleus oocyte ovary ovulation ovum physiology pregnancy reproductive science section seminiferous sertoli sexual spermatids spermatogonia tail testes testicles testis tissue tubules uterus vascular