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Human testis, light micrograph

Seminiferous tubules, light micrograph

Seminiferous tubules, light micrograph

Male germinal epithelium, light micrograph

Spermatogenesis in human testicle, light micrographs

Spermatogenesis in human testicle, light micrographs

Spermatogenesis in human testicle, light micrographs

Spermatogenesis in human testicle, light micrographs

Spermatogenesis in human testicle, light micrograph

Human seminiferous tubules, light micrographs

Spermatogenesis in human testicle, light micrographs

Human seminiferous tubules, light micrographs

Spermatogenesis in human testicle, light micrographs

Spermatogenesis in human testicle, light micrographs

Spermatogenesis in human testicle, light micrographs

Spermatogenesis in human testicle, light micrographs

Spermatogenesis in human testicle, light micrographs

Human seminiferous tubules, light micrographs

Testis, light micrograph

Testicle, light micrograph

Seminiferous tubule and Leydig cells, light micrographs

Testicle Leydig cells, light micrographs

Seminiferous tubules and Leydig cells, light micrographs

Seminiferous tubule, light micrograph

Seminiferous tubule, light micrograph

Seminiferous tubule, light micrograph

Meiosis, LM

Meiosis, LM

Fetal testis, light micrograph

Fetal testis, light micrograph

Testis, light micrograph

Testis, light micrograph

Testis, light micrograph

Testis sperm production, light micrograph

Seminiferous tubules and Leydig cells, light micrographs

Testis, light micrograph

Human sperm centriole, light micrograph

Human spermatid manchette, light micrograph

Sperm production, light micrograph

Sperm production, light micrograph

Sperm production, light micrograph

Human epididymis, light micrograph

Epididymis, light micrograph

Testicle, light micrograph

Spermatozoa, SEM

Human testis, light micrograph

Human testis, light micrograph

Human testis, light micrograph

Human testis, light micrograph

Human testis, light micrograph

Human testis, light micrograph

Human testis, light micrograph

Foetal testis, light micrograph

Testis, LM

Testis, LM

Testis, LM

Foetal ovary, light micrograph

Epididymis, light micrograph

Human testis, light micrograph

Human testis, light micrograph

Human testis, light micrograph

Human seminiferous tubules, light micrograph

Grasshopper spermatozoa, light micrograph

Spermatogenesis, light micrograph

Epididymis, LM

Epididymis, LM

Testis Leydig cells, light micrograph

Spermatogenesis in mammalian testis, light micrograph

Human testis, light micrograph

Meiosis, light micrograph

Meiosis, light micrograph

Meiosis, light micrograph

Meiosis, light micrograph

Meiosis, light micrograph

Meiosis, light micrograph

Human testis neoplasia, light micrograph

Foetal testis, light micrograph

Prostate gland, light micrograph

Prostate gland, light micrograph

Prostate gland, light micrograph

Human prostate gland, light micrograph

Human prostate gland, light micrograph

Epididymis, light micrograph

Epididymis, light micrograph

Epididymis, light micrograph

Seminiferous tubule, light micrograph

Seminiferous tubules, light micrograph

Secretory epithelium, light micrograph

Epididymis epithelium, light micrograph

Epididymis epithelium, light micrograph

Epididymis epithelium, light micrograph

Epididymis epithelium, light micrograph

Epididymis epithelium, light micrograph

Epididymis epithelium, light micrograph

Sperm production, SEM

Maturing spermatozoa, TEM

Spermatogenesis, TEM

Prometaphase oocyte, light micrograph

Anaphase I oocyte, light micrograph

Seminiferous tubule, light micrograph

Prostate gland and urethra, light micrograph

Spermatic cord, light micrograph

Germ cell neoplasia, light micrograph

Seminiferous tubule of testis

Meiosis, light micrograph

Seminiferous tubules, light micrograph

Seminiferous tubules, light micrograph

Human testicle, light micrograph

Seminoferous tubules, light micrograph

Spermatogenesis, light micrograph

Spermatogenesis, light micrograph

Spermatogenesis, light micrograph

Spermatogenesis, light micrograph

Seminiferous tubule, light micrograph

Seminiferous tubules, light micrograph

Testis epididymis, light micrograph

Testis epididymis, light micrograph

Testis epididymis, light micrograph

Common frog testis, light micrograph

Sperm, TEM

Oocyte, light micrograph

Ovarian follicles, light micrograph

Epididymis, light micrograph

Testis epididymis, light micrograph

Sperm production, SEM

Sperm production, SEM

Seminiferous tubule, light micrograph

Seminiferous tubules, light micrograph

Human testis tubule filled with sperm

Adrenal gland, light micrograph

Hepatocyte in mitosis, light micrograph

Small vein valve, light micrograph

Blood vessels and nerves, light micrograph

Vas deferens, light micrograph

Vas deferens, light micrograph

Vas deferens, light micrograph

Pampiniform plexus, light micrograph

Mitosis, light micrograph

Seminal vesicle cells, light micrograph

Vas deferens, light micrograph

Vas deferens, light micrograph

Vas deferens, light micrograph

Vas deferens, light micrograph

Klinefelter syndrome, light micrograph

Spermatogenesis, light micrograph

Testis sperm production, light micrograph

Human adrenal gland cortex, light micrograph

Human adrenal gland cortex, light micrograph

Human adrenal gland cortex, light micrograph

Human adrenal gland cortex and medulla, light micrograph

Human adrenal gland, light micrograph

Epididymis, light micrograph

Human testis cancer, light micrograph

Sperm, SEM

Sperm, SEM

Sperm, SEM

Immature germ cell in semen, SEM

Immature germ cell in semen, SEM

Immature germ cell in semen, SEM

Sperm production, SEM

Sperm production, SEM

Sperm production, SEM

Fern sori and spores, light micrograph

Crossing over during meiosis, light micrograph

Crossing over during meiosis, light micrograph

Crossing over during meiosis, light micrograph

Crossing over during meiosis, light micrograph

Chromosomes condensing during meiosis, light micrograph

Testis, TEM

Testis, TEM

Testis, TEM

Sperm production site, SEM

Seminiferous tubule in testis

Testis, light micrograph

Testis, light micrograph

Epididymis, light micrograph

Three seminiferous tubules in testis

Human testis, TEM

Human testis, TEM

Mitosis, light micrograph

Sperm production site, SEM

Sertoli cells, TEM

Sertoli cells, TEM

Sertoli cell, TEM

Sperm production, artwork

Seminiferous tubules, light micrograph

Human testicle, light micrograph

Sertoli cell, TEM

Prostate, light micrograph

Human prostate, light micrograph

Human prostate, light micrograph

Vas deferens, light micrograph

Vas deferens, light micrograph

Sperm cells, TEM

Human epididymis, light micrograph

Epididymis, TEM

Epididymis, TEM

Ovary, LM

Ovary, LM

Ovarian follicle, light micrograph