Bulb of penis

Flare of the urethra tissue at the base of the human biological male sex organ

Bulb of penis

The constituent cavernous cylinders of the penis. (Bulb labeled at bottom center.)

Vertical section of bladder, penis, and urethra. (Bulb visible at bottom center.)

Details
Artery| artery of bulb of penis
Vein| vein of bulb of penis
Lymph| superficial inguinal lymph nodes
Identifiers
Latin| bulbus penis
TA98| A09.4.01.016
TA2| 3685
FMA| 19614
Anatomical terminology

[edit on Wikidata]

The bulb of penis is the proximal/posterior end of the (unpaired median) corpus spongiosum. Together with the two crura of penis (one crus on each side of the bulb), it constitutes the root of penis.[1]

Proximally/posteriorly, the bulb of penis extends towards the perineal body. The bulb exhibits a slight yet palpable midline notch upon its inferior aspect.[1]

The male urethra enters the penis at the superior aspect of the anterior part of the bulb (most of the bulb is thus situated inferoposteriorly to the urethra), and the arteries of bulb of penis enter near the urethra.[1]

The bulb of penis is homologous to the vestibular bulbs in females.[2]

## Additional images[edit]

* Male urethra.

* Diagram of the arteries of the penis.

## References[edit]

1. ^ a b c Sinnatamby, Chummy S. (2011). Last's Anatomy (12th ed.). p. 319\. ISBN 978-0-7295-3752-0.
2. ^ Clemente, Carmine D. (2010). Clemente's Anatomy Dissector: Guides to Individual Dissections in Human Anatomy with Brief Relevant Clinical Notes (applicable for Most Curricula). Wolters Kluwer/Lippincott Williams & Wilkins Health. p. 205\. ISBN 978-1-60831-384-6. Retrieved September 29, 2023.

## External links[edit]

* Perineum at The Anatomy Lesson by Wesley Norman (Georgetown University)
* figures/chapter_38/38-4.HTM: Basic Human Anatomy at Dartmouth Medical School

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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
* Appendix
* Inferior ligament
* Superior ligament
* Stereocilia
* Paradidymis
* Spermatic cord
* Vas deferens
* Ampulla
* Ejaculatory duct

Accessory glands|

* Seminal vesicles
* excretory duct
* Prostate
* Urethral crest
* Seminal colliculus
* Ejaculatory duct
* sinus
* ducts
* utricle
* evolution in monotremes
* Bulbourethral glands

External|

| Penis|

* root
* Crus
* Bulb
* Fundiform ligament
* Suspensory ligament
* body
* Corpus cavernosum
* Trabeculae of corpora cavernosa
* Corpus spongiosum
* Trabeculae of corpus spongiosum
* glans
* Foreskin
* Frenulum
* Corona
* Septum glandis
* fascia
* superficial
* deep
* Tunica albuginea
* Septum of the penis
* Penile raphe

|

Urinary tract|

* Internal urethral orifice
* Urethra
* Pre-prostatic
* 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

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