1.4 The Ureters and the Urinary Bladder Flashcards
How is the Ureter Peritonised?
It is Retroperitoneal
What is the Ureter?
A distensible, muscular tube that connects the Kidney with the Bladder
Where does the Proximal Portion of the Ureter lie?
In the Abdominal Cavity
Where does the Distal Portion of the Ureter lie?
In the Pelvic Cavity
Where does the Ureter commence?
At a dilatation known as the Renal Pelvis
Where does the Ureter lie, in relation to the other Renal Vessels?
Posterior
Where does the Ureter follow as it descends towards the Bladder?
The Psoas Major Muscle
What does the Ureter cross over as it is travelling towards the bladder?
The bifurcation of the Common Iliac Artery
What is significant about the Ureter crossing over the Bifurcation of the Common Iliac Artery?
It is a common place for constriction, and therefore obstruction
Which wall of the Pelvis does the Ureter travel on?
The Lateral Wall
After coursing along the Lateral Wall of the Pelvis, where does the Ureter go?
It turns Medially and enters into the Bladder
In males, what crosses the Ureters superiorly?
The Ductus (Vas) Deferens
In females, what crosses the Ureters superiorly?
The Uterine (Ovarian) Artery
Where are the 3 constrictions of the Ureter?
- The Pelvoureteric Junction
- Over the Pelvic Brim
- The Vesicoureteric Junction
What is the Pelvoureteric Junction?
The Junction at the Renal Pelvis
What is the Pelvic Brim?
The area of Bifurcation of the Common Iliac Artery
What is the Vesicoureteric Junction?
The Junction as the Ureter enters the Bladder
What part of the Bladder does the Ureter enter?
The Trigone (aka the Base of the Bladder) on the Posterior Wall
From which part of the Bladder does the Urethra exit?
The Neck of the Bladder (the Inferior-most part) at the Urethral Orifice
What is the Median Umbilical Ligament and Embyrological Remnant of?
The Urachus of the Hindgut
Where does the Median Umbilical Ligament extend from / to?
From - The Apex of the Bladder
To - The Umbilicus
What kind of Tissue makes up the walls of the Bladder?
Transitional
What is the name of the Joint immediately anterior to the Urinary Bladder?
The Pubic Symphis
What is the relationship between the of the Parietal Peritoneum and the Urinary Bladder?
The Parietal Peritoneum, from the Inferior Part of the Abdominal Wall, drapes over the Superior Surface of the Urinary Bladder and dips down behind the surface of the Peritoneal Pouches
What kind of Epithelium lines the Urinary Bladder and Ureter?
Stratified Transitional Epithelium
What is the Advantage of having Stratified Transitional Epithelium?
It can stretch to accommodate fluctuations in Urinary Fluid Volume
What is the Urethra?
A tube which arises from the inferior part of the Urinary Bladder
Where does the Urethra carry Urine from / to?
From - The Bladder
To - The Exterior (Excretion)
Is its anatomy in both males and females the same?
No
Which sex has a longer Urethra?
Males
Which sex has a short Urethra?
Females
