Unit 3 Pelvic Viscera Flashcards
Length of rectum
5 inches
The rectum is a continuation of the:
Pelvic colon
The rectum begins where?
In front of S3
Where does the rectum end?
1 inch in front of the tip of the coccyx
The rectum continues into the:
Anal canal
The rectum does not have
Taeniae coli
Omental appendices
Haustra
Longitudinal fibers form what on the rectum?
Broad bands on anterior and posterior surfaces
Rectal punch in the male
Rectovesical pouch
Rectal pouch in females
Rectouterine pouch
And
pouch of Douglas
Anterior supply of rectum
Sup. Rectal art
Middle rectal art
Inf rectal art
The sup rectal art is a branch from the
Inf mesenteric art
The middle rectal art is a branch off of the:
Internal iliac artery
The deepest part of the peritoneal in the male
Rectovesical pouch
Inf rectal artery is a branch of the:
Internal pudendal artery
The internal pudendal art is a branch off of the:
Internal iliac artery
Venous drainage of rectum
Superior rectal vein
Middle rectal vein
Inferior rectal vein
The superior rectal vein drains into the:
Inferior mesenteric vein
The middle rectal vein drains into the:
Internal iliac vein
The inferior rectal vein drains into the
Internal pudendal vein
The internal pudendal vein drains into the
Internal iliac vein
Rectum lymphatic drainage
Pararectal nodes go into the inf mesenteric nodes
Internal iliac nodes
Nerve supply to the rectum
Pelvic plexuses
- inferior hypogastric plexus
Where does the urinary bladder sit when empty
In the pelvic cavity
The urinary bladder expands into the________ when full
Abdomen
Shape of urinary bladder
Pyramidal
Surfaces of the urinary bladder
Superior
Inferolateral (2)
Posterior/Base
Apex
Peritoneal pouch of the bladder for males
Rectovesical pouch
Peritoneal pouch for the bladder in females
Uterovesical pouch
Superior surface of the bladder is covered with what?
Peritoneum
The inferolateral surface of the bladder is supported by what?
Levator ani and obturator internus
The apex of the bladder is where what is located?
What does this contain?
Medial umbilical ligament
Contains obliterated urachus
The posterior surface (base) of the bladder’s shape:
Triangular
Where is the Trigone located?
Internally in the post surface (base)
Where do ureters enter?
Posterior upper corners
The urethra drains:
Inferiorly
Where are the seminal vesicles and vas deferens located?
By the post surface of the bladder
Where to the urethras begin?
In the neck region of the bladder
Internal sphincter of the urethra
Sphincter vesicae
Most fixed part of the bladder
Neck
What type of muscle is the spincter vesicae
Smooth muscle
What prevents the release of urine?
Sphincter vesicae
What is the sphincter vesicae innervated by?
Sympathetic fibers (inf hypogastric plexus)
What is the sphincter vesicae relaxed by
Parasympathetic fibers (S2-4)
Arterial supply to the bladder
Superior and inferior vesicae arteries
The sup and inf vesical arteries are branches from the:
Internal iliac art
The venous drainage of the bladder
Vesical plexus of veins
What does the vesical plexus drain into?
Internal iliac vein
And
Prostatic plexus
Lymphatic drainage of the bladder
Internal iliac nodes
External iliac nodes
Nerve supply of the bladder
Pelvic nerves through the sacral plexus
Where are the parasympathetic fibers innervation in the bladder?
Walls of the bladder
External bladder sphincter, AKA
Sphincter urethra seems
External bladder sphincter is under:
It is innervated by:
Voluntary control
Pudendal nerve
