- Crus of penis
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Crus of penis 
The constituent cavernous cylinders of the penis. (Crus labeled at bottom left.) 
Vertical section of bladder, penis, and urethra. (Crus penis labeled at bottom center.) Latin crus penis Gray's subject #262 1248 Lymph superficial inguinal lymph nodes For their anterior three-fourths the corpora cavernosa penis lie in intimate apposition with one another, but behind they diverge in the form of two tapering processes, known as the crura, which are firmly connected to the ischial rami.
Traced from behind forward, each crus begins by a blunt-pointed process in front of the tuberosity of the ischium, along the perineal surface of the conjoined (ischiopubic) ramus.
Just before it meets its fellow it presents a slight enlargement, named by Georg Ludwig Kobelt (1804-1857) the bulb of the corpus cavernosum penis.
Beyond this point the crus undergoes a constriction and merges into the corpus cavernosum proper, which retains a uniform diameter to its anterior end.
Additional images
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Male urethra.
External links
- crus+of+penis at eMedicine Dictionary
This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.
Male reproductive system (TA A09.3–4, TH H3.07.02, GA 11.1236) Internal layers (Tunica vaginalis, Tunica albuginea, Tunica vasculosa testis) · Appendix · Mediastinum · Lobules · Septa · Leydig cell · Sertoli cell · Blood-testis barrierOtherSeminiferous tubules (Tubuli seminiferi recti, Rete testis, Efferent ducts) · Epididymis (Appendix, Stereocilia) · Paradidymis · Spermatic cord · Vas deferens (Ampulla) · Ejaculatory ductAccessory
glandsExternal root (Crus, Bulb, Fundiform ligament, Suspensory ligament) · body (Corpus cavernosum, Corpus spongiosum) · glans (Foreskin, Frenulum, Corona) · fascia (superficial/subcutaneous, deep/Buck's) · Tunica albuginea · Septum of the penisCategories:- Genitourinary system stubs
- Male reproductive system
- Penis
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