ABSTRACT
The two erectile chambers that contain endothelium-lined spaces or sinusoids that fill with blood, causing an erection
Located in the dorsal/lateral portions of the penis
Apermeable septumdivides the two corpora
2. Corpus spongiosum:
Compartment that contains spongy tissue and the urethra
Located ventral to the corpora cavernosa Connects to the glans or head of the penis Contains the urethra
3. Urethra:
Within the corpus spongiosum until the urogenital septum
Membranous urethra-located between the bladder neck and the urogenital septum
Bulbar urethra-extends from the urogenital septum to the suspensory ligament
Penile urethra-distal to suspensory ligament
C. Arterial Supply
1. Internal Pudendal Arterial System-Paired
a. The deep arterial supply is from the penile artery, which divides into four branches:
Bulbourethral artery Urethral artery Cavernous artery-provides increased flow
for erection; located within each corpus cavernosum
Dorsal artery:
Found on the dorsolateral surface, outside the tunica albuginea
Runs within Buck’s fascia
Located between the deep dorsal vein medially and the dorsal nerve laterally
Enters the glans of the penis distally
2. External Pudendal Arterial System
a. Supplies the skin and dartos fascia.
