Spermatocyte
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| Spermatocyte | |
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| Transverse section of a tubule of the testis of a rat. X 250. | |
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| Scheme showing analogies in the process of maturation of the ovum and the development of the spermatids (young spermatozoa). | |
| Gray's | subject #258 1243 |
| MeSH | Spermatocytes |
A spermatocyte is a male gametocyte which is derived from a spermatogonium. Initially, a spermatogonium divides by mitosis into two so-called primary spermatocytes. A primary spermatocyte is also diploid, and, in turn, gives place by meiosis to two secondary spermatocytes, which this time are haploid.
[edit] Additional images
Histological section through testicular parenchyma of a boar. 1 Lumen of Tubulus seminiferus contortus, 2 spermatids, 3 spermatocytes, 4 spermatogonia, 5 Sertoli cell, 6 Myofibroblasts, 7 Leydig cells, 8 capillaries |
Schematic diagram of Spermatocytogenesis |
| Male reproductive system |
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| Scrotum : layers (skin, Dartos, External spermatic fascia, Cremaster, Internal spermatic fascia) | Perineal raphe | Spermatic cord
Testes: layers (Tunica vaginalis, Tunica albuginea), Appendix, Mediastinum, Lobules, Septa, Leydig cell, Sertoli cell, Blood-testis barrier Spermatogenesis: Spermatogonium, Spermatocyte, Spermatid, Spermatozoon seminal tract: Seminiferous tubules (Tubuli seminiferi recti, Rete testis, Efferent ducts) | Epididymis (Appendix) | Vas deferens | Ejaculatory duct Seminal colliculus urinary tract: Internal urethral orifice | Urethra (Prostatic, Intermediate, Spongy) | Urethral crest | Urethral gland | External urethral orifice Penis: Corpus cavernosum | Corpus spongiosum | Navicular fossa of male urethra | Glans penis | Fundiform ligament | Suspensory ligament | Foreskin | Frenulum accessory glands: Seminal vesicles (Excretory duct of seminal gland) | Prostate (Prostatic utricle, Prostatic sinus) | Bulbourethral glands |
