13 Male reproductive system Testis
Endoplasmic reticulum Primary spermatocyte
Nucleus of Sertoli cell Cytoplasm of Sertoli cell Lipid vacuole
Primary spermatocyte
Testis, Sertoli cell, ox; x4000.
Endoplasmic reticulum Acrosomal process Perforatorium
Head of spermatozoon, nucleus
Outer acrosomal membrane
Subacrosomal space
Testis, late maturation phase, ox; x5000.
Head of spermatozoon Fragments of cells of corona radiata
Zona pellucida
Head of spermatozoon
Fragments of cells of corona radiata
Spermatozoa in zona pellucida, ox; x8500. 13 Male reproductive system Testis
Spermatids (acrosomal phase) Sertoli cell
Spermatogonia
Interstitial connective tissue with vessels
Leydig cells
Primary spermatocytes
Testis, seminiferous tubules, cat. Azan stain; x400.
Spermatids (acrosomal phase) Spermatogonia
Sertoli cell
Interstitial connective tissue with vessels
Leydig cells
Primary spermatocyte
Testis, seminiferous tubules, cat. Azan stain; x400.
Spermatogonia
Leydig cells
Sertoli cell
Spermatids (established acrosomal phase)
Primary spermatocytes
Spermatogonia
Sertoli cell
Leydig cells Testis, seminiferous tubules, pig. Goldner's Masson trichrome stain; x400. 13 Male reproductive system Testis
Spermatids (Golgi phase)
Primary spermatocyte
Sertoli cell
Leydig cells Primary spermatocyte
Spermatogonia
Spermatids (acrosomal phase)
Testis, seminiferous tubules, pig. Goldner's
Masson trichrome stain; x400.
Spermatids (Golgi phase)
Lamina propria Primary spermatocyte
Sertoli cell
Primary spermatocytes
Spermatogonia
Spermatids (cap phase)
Spermatogonia Testis, seminiferous tubules, ox. H.E. stain; x 4 0 0.
Spermatids in late maturation phase Primary spermatocytes
Sertoli cell
Primary spermatocyte
Spermatogonia Sertoli cell Lamina propria with stratum myoideum, stratum fibrosum and basal lamina
Testis, seminiferous tubules, ox. H.E. stain; x400. 13 Male reproductive system Testis
Convoluted seminiferous tubules
Rete testis (often filled with spermatozoa)
Mediastinum testis (connective tissue and myofibroblasts)
Convoluted seminiferous tubules
Testis, rete and mediastinum testis, goat. H.E. stain; x40.
Transition from straight testicular tubule to rete testis
Convoluted seminiferous tubules
Rete testis with squamous to columnar epithelium
Mediastinum testis (connective tissue with myofibroblasts and vessels)
Testis, rete and mediastinum testis, ox. H.E. stain; x40.
Cuboidal to columnar epithelium Rete testis
Cuboidal to columnar epithelium
Mediastinum testis (connective tissue with vessels and myofibroblasts)
Testis, rete and mediastinum testis, ox. H.E. stain; x200. 13 Male reproductive system Testis
Convoluted seminiferous tubule (Golgi-Phase)
Interstitium with Leydig cells and capillaries
Convoluted seminiferous tubule (late maturation phase and delivery of spermatozoa into lumen, spermiation)
Convoluted seminiferous tubule (acrosomal phase) Testis, seminiferous tubules, horse. Goldner's Masson trichrome stain; x100.
Lamina propria with stratum myoideum, stratum fibrosum and basal lamina
Spermatogonia
Sertoli cell
Spermatids (established acrosomal phase)
Primary spermatocyte
Testis, convoluted seminiferous tubule, horse. H.E. stain; x400.
Interstitium with Leydig cells and capillaries
Lamina propria
Spermatogonia Sertoli cells Primary spermatocyte
Spermatids (late Golgi phase)
Spermatids (early Golgi phase )
Testis, convoluted seminiferous tubule, horse. Goldner's Masson trichrome stain; x400. 13 Male reproductive system Testis
Testicular veins
Testicular artery
Autonomic nerve fibre
Pampiniform plexus, ox. H.E. stain; x100.
Epidermis, weakly keratinised, few hairs Sebaceous glands with secretory duct
Subcutis (tunica dartos) with smooth muscle cells
Smooth muscle cells
Sweat glands
Scrotum, horse. H.E. stain; x100.
Tubular sweat glands (apocrine secretion)
Hair (partial section)
Scrotum, pig. H.E. stain; x120.