Internal Organs of the Pelvis

4 April 2006

Pelvic Visceral Organs

Three systems

Urinary

Reproductive

Digestive

Blood supply from internal iliac a.

Visceral motor innervation

Sympathetic from inferior hypogastric plexus

Parasympathetic from pelvic splanchnic nn.

 

Organ systems

Urinary

Ureters

Bladder

Urethra

Digestive

Sigmoid colon

Rectum

Anal canal

Reproductive - female

Uterus

Uterine tubes

Ovaries

Vagina

Reproductive - male

Prostate

Ducti deferens

Seminal vesicles

 

Urinary bladder

Detrusor m.

Apex

Neck

Fundus

Urethral orifice

Vesicle trigone

Netter 1997, pls. 337, 358; 2003, pls. 347, 367

Rosse & Gaddum-Rosse, 1997, Fig. 27-23

 

Associated structures in Males

Prostate gland

Seminal vesicles

Ducti deferens

Ejaculatory ducts

Prostatic utricle

 

Ureteric sphincters

Neck of bladder

Urogenital diaphragm

Netter 1997, pl. 357; 2003, pls. 366

 

Prostate

Anterior lobe

Middle lobe

Posterior lobe

Ejaculatory duct

Clemente, 1997; Fig. 444

see Netter 1997, pl. 358; 2003, pl. 367

 

Female urogenital diaphragm

Vagina

Deep transverse perineus m.

Superficial transverse perineus m.

Netter 1997, pl. 352; 2003, pl. 361

 

Internal pelvic organs - female

Bladder

Urethra

Vagina

Cervix

Uterus

Posterior fornix

Anterior fornix

Rectum

Netter 1997, pl. 337; 2003, pl. 347

 

Ligaments of Uterus

Broad ligament

Mesovarium

Mesometrium

Mesosalpinx

Round ligament

Attaches anterolaterally

Uterosacral ligament

Attaches posterolaterally

Netter 1997, pl. 346; 2003, pl. 356

Rosse & Gaddum-Rosse, 1997; Fig. 27-33

 

Spaces:

Vesicouterine pouch

Rectouterine pouch

Netter 1997, pl. 337; 2003, pl. 347

 

Blood supply of the uterus

Ovarian a.

tubal branches

Uterine a.

ovarian br.

tubal br.

Vaginal a.

Internal pudendal a.

Netter 1997, pl. 337; 2003, pl. 384

 

Ischiorectal Fossa

Levator ani m.

Obturator Internus m.

External & internal anal sphincters

Pudendal canal

Netter 1997, pl. 364; 2003, pl. 373

 

Interior of rectum

Transverse folds of rectum

Pectinate line

anal columns

anal sinuses

Netter 1997, pl. 365; 2003, pls. 374, 375

 

Marks junction between endodermal & ectodermal zones.

Watershed for nervous innervation, blood supply & lymphatic drainage

 

Anal sphincters

Internal anal sphincter

Internal rectal venous plexus

External anal sphincter

External anal venous plexus

Netter 1997, pls. 364, 365; 2003, pls. 374, 375

 

Pelvic vasculature

Branches to viscera

Umbilical, Inf. vesicle, Middle rectal, Uterine, Vaginal

Branches to pelvic wall

Iliolumbar, Lateral sacral

Branches to lower limb

Obturator, Superior gluteal, Inferior gluteal

Branch to perineum

Internal pudendal

 

Rectal aa.

Superior rectal

Middle rectal

Inferior rectal

Netter 1997, pl. 369; 2003, pl. 378, 379

 

Umbilical a.

Superior vesicle a.

Obturator a.

Uterine/Vaginal aa.

Inf. Vesicle a.

prostatic a.

Superior gluteal a.

Inferior gluteal a.

Internal pudendal a.

Netter 1997, pl. 373; 2003, pl. 382