精索
WordNet
- any of several body structure resembling a cord
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア(Wikipedia)』「2017/10/29 07:01:02」(JST)
[Wiki en表示]
Spermatic cord |
Anatomy of the human male reproductive system
|
The spermatic cord in the inguinal canal (label for spermatic cord in lower right)
|
Details |
Identifiers |
Latin |
Funiculus spermaticus |
MeSH |
A05.360.444.777 |
Anatomical terminology
[edit on Wikidata]
|
The spermatic cord is the cord-like structure in males formed by the vas deferens (ductus deferens) and surrounding tissue that runs from the deep inguinal ring down to each testicle. Its serosal covering, the tunica vaginalis, is an extension of the peritoneum that passes through the transversalis fascia.
Contents
- 1 Structure
- 2 Function
- 3 Clinical significance
- 4 Additional images
- 5 References
- 6 External links
Structure
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
Function
Contents
- Arteries: testicular artery, deferential artery, cremasteric artery
- Nerves: nerve to cremaster (genital branch of the genitofemoral nerve) and testicular nerves (sympathetic nerves). It is worth noting that the ilio-inguinal nerve is not actually located inside the spermatic cord, but runs along the outside of it, in the inguinal canal.
- Vas deferens (ductus deferens)
- Pampiniform plexus
- Lymphatic vessels
- Tunica vaginalis (remains of the processus vaginalis)
The pampiniform plexus, testicular artery, cremasteric artery, artery of the ductus deferens, lymphatic vessels, testicular sympathetic nerves, and ductus deferens all run deep to the internal spermatic fascia.[1] The ilioinguinal nerve runs on the superficial surface of the external spermatic fascia.
Clinical significance
The spermatic cord is sensitive to torsion, in which the testicle rotates within its sac and blocks its own blood supply. Testicular torsion may result in irreversible damage to the testicle within hours. A collection of serous fluid in the spermatic cord is named 'funiculocele'.
The contents of the abdominal cavity may protrude into the inguinal canal, producing an indirect inguinal hernia.
Varicose veins of the spermatic cord are referred to as varicocele. Though often asymptomatic, about one in four people with varicocele have negatively affected fertility.[2]
Additional images
-
The left femoral triangle
-
-
The right testis, exposed by laying open the tunica vaginalis
-
-
-
Superficial veins oflower limb.Superficial dissection.Anterior view.
References
- ^ Shadbolt, Clair; Stefan B. J. Heinze; Rosalind B. Dietrich (2001). "Imaging of Groin Masses: Inguinal Anatomy and Pathologic Conditions Revisited". RadioGraphics. doi:10.1148/radiographics.21.suppl_1.g01oc17s261. Figure 3.
- ^ https://www.varicocelehealing.com/info.html
External links
- Anatomy figure: 36:01-00 at Human Anatomy Online, SUNY Downstate Medical Center - "The inguinal canal and derivation of the layers of the spermatic cord."
- Anatomy image:7509 at the SUNY Downstate Medical Center
- Cross section image: pembody/body18b—Plastination Laboratory at the Medical University of Vienna
- Cross section image: pelvis/pelvis-e12-15—Plastination Laboratory at the Medical University of Vienna
- inguinalregion at The Anatomy Lesson by Wesley Norman (Georgetown University) (spermaticcord)
Male reproductive system
|
Internal |
Seminal tract |
Testes |
- layers
- Tunica vaginalis
- Tunica albuginea
- Tunica vasculosa
- Appendix
- Mediastinum
- Lobules
- Septa
- Leydig cell
- Sertoli cell
- Blood–testis barrier
|
Spermatogenesis |
- Spermatogonium
- Spermatocytogenesis
- Spermatocyte
- Spermatidogenesis
- Spermatid
- Spermiogenesis
- Spermatozoon
|
Other |
- Seminiferous tubules
- Tubuli seminiferi recti
- Rete testis
- Efferent ducts
- Epididymis
- Paradidymis
- Spermatic cord
- Vas deferens
- Ejaculatory duct
|
|
Accessory glands |
- Seminal vesicles
- Prostate
- Urethral crest
- Seminal colliculus
- Prostatic utricle
- Ejaculatory duct
- Prostatic sinus
- Prostatic ducts
- Bulbourethral glands
|
|
External |
Penis |
- root
- Crus
- Bulb
- Fundiform ligament
- Suspensory ligament
- body
- Corpus cavernosum
- Corpus spongiosum
- glans
- fascia
- Tunica albuginea
- Septum of the penis
|
Urinary tract |
- Internal urethral orifice
- Urethra
- Prostatic
- Intermediate
- Spongy
- Navicular fossa
- External urethral orifice
- Lacunae of Morgagni
- Urethral gland
|
Scrotum |
- layers
- skin
- Dartos
- External spermatic fascia
- Cremaster
- Cremasteric fascia
- Internal spermatic fascia
- Perineal raphe
- Scrotal septum
|
|
UpToDate Contents
全文を閲覧するには購読必要です。 To read the full text you will need to subscribe.
English Journal
- Emergency ultrasound of acute scrotal pain.
- Wright S1, Hoffmann B.
- European journal of emergency medicine : official journal of the European Society for Emergency Medicine.Eur J Emerg Med.2015 Feb;22(1):2-9. doi: 10.1097/MEJ.0000000000000123.
- Patients presenting with acute scrotal pain to the emergency department require a timely diagnosis. Although the differential diagnosis can be extensive and varies with age, there are a few conditions that are considered true surgical emergencies. These include torsion of the spermatic cord, incarce
- PMID 24910960
- Testicular ascent after laparoscopic percutaneous extraperitoneal closure for inguinal hernias.
- Shono T1, Izaki T1, Nakahori R1, Yoshimaru K2.
- European journal of pediatric surgery : official journal of Austrian Association of Pediatric Surgery ... [et al] = Zeitschrift für Kinderchirurgie.Eur J Pediatr Surg.2015 Feb;25(1):105-8. doi: 10.1055/s-0034-1387938. Epub 2014 Oct 4.
- Aim Laparoscopic percutaneous extraperitoneal closure (LPEC) has been widely performed for the repair of pediatric inguinal hernias in Japan. This study aimed to evaluate the testicular ascent and orchiopexy after LPEC in males with inguinal hernias. Methods The medical records of male patients
- PMID 25281828
- Soft tissue interposition is effective for protecting the neourethra during hypospadias surgery and preventing postoperative urethrocutaneous fistula: a single surgeon's experience of 243 cases.
- Seo S1, Ochi T, Yazaki Y, Okawada M, Doi T, Miyano G, Koga H, Lane GJ, Yamataka A.
- Pediatric surgery international.Pediatr Surg Int.2015 Jan 22. [Epub ahead of print]
- PURPOSE: Soft tissue interposition (STI) during hypospadias repair (HR) purportedly prevents postoperative urethrocutaneous fistula (PUF) by supporting the neourethra. We report our experience.METHODS: Data from 243 hypospadias patients treated by a single surgeon from 1997 to 2014 by urethroplasty
- PMID 25609573
Japanese Journal
Related Pictures
★リンクテーブル★
[★]
- 英
- spermatic cord (Z)
- ラ
- funiculus spermaticus
[★]
[★]
- 関
- sperm、spermatozoa、spermatozoal、spermatozoon