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Human testis tubule filled with sperm

Seminiferous tubule, light micrograph

Seminiferous tubule of testis

Testis sperm production, light micrograph

Seminiferous tubule, light micrograph

Sperm production, SEM

Seminiferous tubule, light micrograph

Seminiferous tubule, light micrograph

Seminiferous tubule, light micrograph

Testis, LM

Testis, LM

Testis, LM

Seminiferous tubules in the testis, SEM

Seminiferous tubules in the testis, SEM

Seminiferous tubules in the testis, SEM

Testis, light micrograph

Testis, light micrograph

Testis, light micrograph

Fetal testis, light micrograph

Fetal testis, light micrograph

Testis, light micrograph

Testis Leydig cells, light micrograph

Spermatogenesis in mammalian testis, light micrograph

Sperm production, SEM

Sperm production, SEM

Sperm production, light micrograph

Sperm production, light micrograph

Sperm production, light micrograph

Cross-section of seminiferous tubules

Human sperm SEM X2250

Sperm production site, SEM

Sertoli cell, TEM

Sperm production, SEM

Testis, SEM

Testis, SEM

Testis, SEM

Testis, SEM

Testis, SEM

Testis, SEM

Testis, SEM

Seminiferous tubules, light micrograph

Testis sperm production, light micrograph

Sperm production, SEM

Sperm production, SEM

Sperm production, SEM

Sperm, TEM

Seminiferous tubules, light micrograph

Common frog testis, light micrograph

Sperm production, artwork

Sperm production site, SEM

Human sperm centriole, light micrograph

Distal end of the seminal vesicle

Human testis, light micrograph

Sperm production, SEM

Sperm production, SEM

Human testis, light micrograph

Sertoli cell, TEM

Sertoli cells, TEM

Sertoli cells, TEM

Epididymis, light micrograph

Human testis neoplasia, light micrograph

Seminiferous tubule in testis

Human spermatid manchette, light micrograph

Epididymis, 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

Testis, TEM

Spermatozoa, SEM

Sperm production, SEM

Sperm production, SEM

Sperm, SEM

Sperm, SEM

Sperm, SEM

Sperm, SEM

Testis, light micrograph

Epididymis, LM

Epididymis, LM

Seminiferous tubules, light micrograph

Germ cell neoplasia, light micrograph

Spermatogenesis, light micrograph

Immature germ cell in semen, SEM

Immature germ cell in semen, SEM

Immature germ cell in semen, SEM

Epididymis, light micrograph

Epididymis, light micrograph

Sperm cells, TEM

Jasmine leaf surface (Jasminum floridum)

Red blood cell

Red Blood Cells SEM

Monocyte white blood cell. SEM

The folded mucosal epithelial surface

Human lymphocyte white blood cell. SEM

Testis epididymis, light micrograph

Testis epididymis, light micrograph

Testis epididymis, light micrograph

Maturing spermatozoa, TEM

Spermatogenesis, TEM

Human testis cancer, light micrograph

Seminiferous tubule, light micrograph

Ultrastructural details of mumps virions

Epididymis, light micrograph

Grasshopper spermatozoa, light micrograph

Spermatogenesis, light micrograph

Testis showing spermatogenesis, light micrograph

Testis, light micrograph

Testis, light micrograph

Human testis cancer, light micrograph

Human testis cancer, light micrograph

Human testis cancer, light micrograph

Three seminiferous tubules in testis

Human testis, light micrograph

Arabidops thaliana leaf surface stomates

The mucosa of the urinary bladder

Seminiferous tubule and Leydig cells, light micrographs

Checkerbloom pollen

Maturing sperm, SEM

Maturing sperm, SEM

Epididymis, light micrograph

Testis anatomy

Conical projections, tongue

Human epididymis, light micrograph

Seminiferous tubule, light micrograph

Seminiferous tubule, light micrograph

Human sperm, acrosome and nucleus

Sperm cells, SEM

Testicular germ cell tumour, light micrograph

Seminiferous tubules, light micrograph

Seminiferous tubules, light micrograph

Male germinal epithelium, light micrograph

Lung epithelial layer

Epididymis, light micrograph

Epididymis, light micrograph

Epididymis, light micrograph

Staphylococcus aureus Bacteria TEM

Staphylococcus aureus Bacteria TEM

Bacteria and yeast, SEM

Bacteria and yeast, SEM

Bacteria and yeast, SEM

Morning Glory pollen grain

Black Walnut (Juglans nigra)

Pine Pollen. SEM

Ragweed Pollen. SEM

Trichomes on a Snapdragon flower petal

Skeletal bone showing Haversian canals

Human tongue surface with papillae. SEM

Fruit Fly head with compound eyes

Compound eye and coiled proboscis

Cross-section of seminiferous tubules

Seminiferous tubules, light micrograph

Seminiferous tubules, light micrograph

Seminiferous tubules, light micrograph

Stigma of Penta lanceolata. SEM

(Bacillus megaterium) Bacteria

Stratified squamous epithelium, vagina

Micrococcus luteus Bacteria. SEM

Highly flattened cells, SEM

Testis epididymis, light micrograph

Human epididymis, light micrograph

Sperm in the testis, TEM

Testis, TEM

Testis, TEM

Human sperm cell, SEM

Human sperm cell, SEM

Human sperm cell, SEM

Human sperm cell, SEM

Human sperm cell, SEM

Human sperm cells, SEM

Human sperm cells, SEM

Human sperm cells, SEM

Human sperm cells, SEM

Sperm cells, SEM

Human sperm cells, SEM

Human sperm cells, SEM

Human sperm cells, SEM

Sperm cell, SEM

Testis blood vessels, SEM

Human testis, TEM

Human testis, TEM

Human seminiferous tubules, 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

Testicle Leydig cells, light micrographs

Seminiferous tubules and Leydig cells, 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