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Seminiferous tubule, light micrograph

Seminiferous tubules, light micrograph

Seminiferous tubules, light micrograph

Seminiferous tubule, light micrograph

Seminiferous tubule, light micrograph

Seminiferous tubule, light micrograph

Seminiferous tubule, light micrograph

Seminiferous tubule of testis

Sperm production, SEM

Sperm production, SEM

Seminiferous tubules, light micrograph

Sperm production, SEM

Fetal testis, light micrograph

Fetal testis, light micrograph

Testis, light micrograph

Testis, light micrograph

Testis, light micrograph

Testis, light micrograph

Testis sperm production, light micrograph

Sperm production site, SEM

Seminiferous tubules in the testis, SEM

Seminiferous tubules in the testis, SEM

Seminiferous tubules in the testis, SEM

Maturing spermatozoa, TEM

Seminiferous tubule, light micrograph

Seminiferous tubule and Leydig cells, light micrographs

Sertoli cells, TEM

Sertoli cells, TEM

Sertoli cell, TEM

Sperm, TEM

Seminiferous tubules, light micrograph

Seminiferous tubules, light micrograph

Human seminiferous tubules, light micrographs

Human seminiferous tubules, light micrographs

Human seminiferous tubules, light micrographs

Seminiferous tubules, light micrograph

Seminiferous tubules, light micrograph

Sperm production, SEM

Sperm production, SEM

Sperm production, SEM

Sperm production, artwork

Sperm production, SEM

Seminiferous tubule in testis

Seminiferous tubules, light micrograph

Spermatogenesis in human testicle, light micrograph

Seminiferous tubules and Leydig cells, light micrographs

Sperm production, light micrograph

Sperm production, light micrograph

Sperm production, light micrograph

Testis Leydig cells, light micrograph

Spermatogenesis in mammalian testis, light micrograph

Human spermatid manchette, light micrograph

Sperm production, SEM

Sperm production, SEM

Testis, SEM

Testis, SEM

Testis, SEM

Testis, SEM

Testis, SEM

Testis, SEM

Testis, SEM

Human testis tubule filled with sperm

Human testis neoplasia, light micrograph

Germ cell neoplasia, light micrograph

Seminiferous tubule, light micrograph

Testis, light micrograph

Testis, light micrograph

Spermatogenesis, 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 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

Testis, LM

Testis, LM

Testis, LM

Epididymis, light micrograph

Male germinal epithelium, light micrograph

Common frog testis, light micrograph

Testis anatomy

Human seminiferous tubules, light micrograph

Testicle Leydig cells, light micrographs

Three seminiferous tubules in testis

Sperm production site, SEM

Cross-section of seminiferous tubules

Human sperm centriole, light micrograph

Grasshopper spermatozoa, light micrograph

Spermatogenesis, light micrograph

Epididymis, light micrograph

Epididymis, light micrograph

Sertoli cell, TEM

Sperm production, SEM

Sperm production, SEM

Seminiferous tubules, light micrograph

Human testis, light micrograph

Seminiferous tubule, light micrograph

Seminiferous tubule, light micrograph

Chromatoid body, TEM

Seminiferous tubules and Leydig cells, light micrographs

Epididymis, light micrograph

Spermatozoa, SEM

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

Human testis, light micrograph

Cross-section of seminiferous tubules

Testis sperm production, light micrograph

Human kidney nephron, SEM

Human kidney nephron, SEM

Human kidney nephron, SEM

Deformed sperm cell, SEM

Deformed sperm cell, SEM

Sperm production site, SEM

Sperm production site, SEM

Testis, TEM

Sperm, SEM

Sperm, SEM

Sperm, SEM

Blue mussel, light micrograph

Spermatogenesis, TEM

Epididymis, LM

Epididymis, LM

Immature germ cell in semen, SEM

Immature germ cell in semen, SEM

Immature germ cell in semen, SEM

Human testis, light micrograph

Human testicle, light micrograph

Testicle, light micrograph

Seminiferous tubules, light micrograph

Epididymis, light micrograph

Testis epididymis, light micrograph

Testis epididymis, light micrograph

Testis epididymis, light micrograph

Ovarian primordial follicle, TEM

Endoplasmic reticulum, TEM

Endoplasmic reticulum, TEM

Epididymis, light micrograph

Seminiferous epithelium, TEM

Testis, light micrograph

Foetal testis, light micrograph

Sperm cells, SEM

Sperm cells, SEM

Sperm, SEM

Human testicle, light micrograph

Seminoferous tubules, light micrograph

Spermatogenesis, light micrograph

Spermatogenesis, light micrograph

Spermatogenesis, light micrograph

Spermatogenesis, light micrograph

Foetal testis, light micrograph

Human testicle, light micrograph

Human testicle, light micrograph

Blood vessels supplying a testis, SEM

Blood vessels supplying a testis, SEM

Epididymis, light micrograph

Endoplasmic reticulum, TEM

Sperm, SEM

Klinefelter syndrome, light micrograph

Maturing sperm, SEM

Maturing sperm, SEM

Testis showing spermatogenesis, light micrograph

Human placenta, SEM

Human placenta, SEM

Epididymis, TEM

Epididymis, TEM

Testicle, light micrograph

Sperm cells, SEM

Oocyte and zona pellucida, TEM

Oocyte and zona pellucida, TEM

Oocyte and zona pellucida, TEM

Oocyte and zona pellucida, TEM

Oocyte and zona pellucida, TEM

Oocyte and zona pellucida, TEM

Oocyte and zona pellucida, TEM

Oocyte, TEM

Oocyte, TEM

Penis erectile tissue, SEM

Penis blood vessels, SEM

Prostate gland, light micrograph

Prostate gland, light micrograph

Prostate gland, light micrograph

Testis blood vessels, SEM

Human epididymis, light micrograph

Abnormal human sperm cell, SEM

Sperm, SEM

Human sperm cell, SEM

Human sperm cell, SEM

Blood vessels supplying a testis, SEM

Seminal vesicle cells, light micrograph

Testis, TEM

Sertoli cell, TEM