Perineal Vasculature, Innervation, and Structures

Ischiorectal fossa

• Gluteus maximus
• perianal skin
• sacrotuberous ligament
• inferior fascia pelvic diaphragm
• supeior fascia urogenital diaphragm
• conjoint rami
• urogenital hiatus
• fusions of fascia
• pudendal canal
• superficial transverse perineal muscle

Superficial Pouch

• inferior fascia of urogenital diaphragm
• superficial perineal fascia (membranous Scarpa's posterior to scrotum or within the labia majora
• posterior free edge of urogenital diaphragm
• conjoint rami
• scrotum or labia majora
• crus penis or clitoris
• ischiocavernosus
• corpora cavernosum
• corpora spongiosum
• bulbospongios

Deep Pouch

• superior fascia urogenital diaphragm
• inferior fascia urogenital diaphragm
• transvers perineal ligament
• fusion of superior and inferior fascia
• posterior free edge of urogenital diaphragm
• conjoint rami
• sphincter urethra
• deep transverse perineus muscle
• bulbourethral gland in male
• membranous urethra
• vagina

Vasculature

• internal pudendal artery
• pudendal canal
• falciform edge of medial ischial tuberosity
• obturator internus
• inferior rectal artery
• posterior free edge of urogenital diaphragm
• posterior scrotal or labial arteries
• superficial perineal membrane (Scarpa's)
• artery to the bulb
• artery to ischiocavernosus
• perineal artery
• anterior superior recess ischiorectal fossa
• deep artery
• superior fascia urogenital diaphragm
• dorsal artery
• transverse perineal ligament
• Buck's fascia
• deep dorsal vein
• dorsal nerve

Innervation

• pudendal nerve
• pudendal canal
• falciform edge of medial ischial tuberosity
• obturator internus
• inferior rectal nerve
• posterior free edge of urogenital diaphragm
• posterior scrotal or labial nerves
• superficial perineal membrane (Scarpa's)
• perineal nerve
• ischiocavernosus
• bulbospongiosus
• anterior superior recess ischiorectal fossa
• superior fascia urogenital diaphragm
• dorsal nerve
• transverse perineal ligament
• Buck's fascia
• deep dorsal vein
• dorsal artery

Structures

• pelvic diaphragm
• inferior fascia pelvic diaphragm
• anal canal
• gluteus maximus
• external anal sphincter
• perineal body
• urogenital diaphragm
• crus penis or clitoris
• corpora cavernosum
  
• ischiocavernosus
• bulbospongiosus
• corpora spongiosum
• glans
• navicular fossa
• bucks fascia
• Colle's fascia (Sarpa's fascia)
• superificial perineal fascia (Scarpa' fascia)
• dartos (Scarpa's fascia)
• external spermatic fascia
• spermatic cord
  • external spermatic fascia
  • cremasteric fascia and muscle
  • cremasteric artery
  • genitofemoral nerve
  • internal spermatic fascia
  • pampiniform plexus
  • testicular artery and plexus
  • deferent artery and plexus
  • vas deferens
  • head, body, and tail epididymus
  • efferent ductules
  • tunica albugenia
  • tunica vaginalis parietal layer
  • tunica vaginalis visceral layer
• scrotal ligament
• scrotum
• labia majora
• vestibule
• posterior frenulum
• prepuce
• anterior frenulum
• clitoris or penis
• suspensory ligamint
  • pubic symphysis
  • deep fascia
    
• glans
  

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