Flashcards in Urinary System Deck (62)
What are the functions of the urinary system?
Elimination, Conservation, Regulation, and Endocrine
The kidneys and most of the ureters are ______ (with regard to mesentery or retroperitoneum) .
The lower parts of the ureters and urinary bladder are _______ (with regard to mesentery or retroperitoneum)
Not part of gut tube and have never had a mesentery
Function of urinary system: ______ -urine & toxic metabolites from the blood
Function of urinary system: _______ -salts, glucose, proteins & H20
Function of urinary system: _______ -blood pressure,hemodynamics & acid-basebalance
Function of urinary system: ________ -produces Vitamin D, renin, erythropoietin and prostaglandins (hormonal control of other tissues/organs)
The _______ is formed from the major calyces
Structures that serve the kidneys (vessels, nerves, and structures that drain urine from the kidney) enter and exit the renal sinus through the ________
T/F: The kidney has collateral alarterial circulation.
False; has no
In regard to to the vein, artery, and ureter, what is the spatial orientation from anterior to posterior?
Vein, artery, and ureter
____ arteries supply the kidneys
The renal arteries branch off the aorta at what level of spinal cord
Each renal artery divides into ________ arteries that enter the hilum of the kidney
5 segmental arteries
How many of the segmental arteries go the anterior portion of kidney and how many go to the posterior portion?
4 anterior and 1 posterior
How many segments of the kidney are there?
Each segmental artery gives rise to a number of ______ arteries, each supplies a renal pyramid
Kidney starts ___ and ____ during development
low and ascends
How many major calyces does a kidney typically have?
____ are muscular tubes (25–30 cm long) with narrow lumina that carry urine from the kidneys to the urinary bladder
The abdominal parts of the ureters adhere closely to the _______ and are ________ (mesenteric or retroperitoneal) throughout their course.
parietal peritoneum; retroperitoneal
They run inferiorly from the apices of the renal pelves at the hila of the kidneys, passing over the pelvic brim at the bifurcation of the common iliac arteries; Theyt hen run along the lateral wall of the pelvis and enter the urinary bladder
The ureters pass _____ the pelvic brim at the bifurcation of the common iliac arteires
The ureters pass ______ through the muscular wall of the urinary bladder in an _____ direction
This oblique passage through the bladder wall forms a one-way ______, the internal pressure of the filling bladder causing the intramural passage to collapse
In addition, contractions of the ______ acts as a sphincter preventing the reflux of urine into the ureters when the bladder contracts
detrusor muscle of the bladder
Urine passes down the ureters by means of ________, a few drops being transported at intervals of 12–20 seconds
The ureters pass _____ the gonadal vessels