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Spermatic cord
From Wikipedia, the free encyclopedia
| Spermatic cord | |
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| Anatomy of the human male reproductive system | |
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| The spermatic cord in the inguinal canal. (Label for spermatic cord in lower right.) | |
| Latin | funiculus spermaticus |
| Gray's | subject #258 1239 |
| MeSH | Spermatic+Cord |
The spermatic cord is the name given to the cord-like structure formed by the vas deferens and surrounding tissue that run from the abdomen down to each testicle.
Contents |
- arteries: testicular artery, deferential artery, cremasteric artery
- nerves: genital branch of the genitofemoral nerve, nerve to cremaster, sympathetic nerves
- vas deferens
- pampiniform plexus
- lymphatic vessels
The spermatic cord is ensheathed in three layers of tissue:
- external spermatic fascia, an extension of the innominate fascia that overlies the aponeurosis of the external oblique muscle
- cremasteric muscle and fascia, formed from a continuation of the internal oblique muscle and its fascia
- internal spermatic fascia, continuous with the transversalis fascia
The spermatic cord is sensitive to torsion, in which the testicle rotates within its sac and kinks off its own blood supply. Testicular torsion may result in irreversible damage to the testicle within hours.
The contents of the abdominal cavity may protrude into the spermatic cord, producing an indirect inguinal hernia.
 The left femoral triangle. |
 The scrotum. |
 The right testis, exposed by laying open the tunica vaginalis. |
- SUNY Figs 36:01-00 - "The inguinal canal and derivation of the layers of the spermatic cord."
- SUNY Anatomy Image 7509
- Cross section at UV pembody/body18b
- Cross section at UV pelvis/pelvis-e12-15
- Norman/Georgetown inguinalregion
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, Spermatocytogenesis, Spermatocyte, Spermatidogenesis, Spermatid, Spermiogenesis, 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
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