Shared Flashcard Set

Details

Ch 23
Ch 23
47
Anatomy
Undergraduate 3
07/30/2014

Additional Anatomy Flashcards

 


 

Cards

Term
what are the functions of the urinary system?
Definition
Remove waste, regulate body chemicals, secrete hormones, maintain pH balance
Term
Urine is eliminated through the___?
Definition
Urethra
Term
Urine is carried to the urinary bladder by _____?
Definition
the Ureters
Term
Kist the organs of the urinary system
Definition
Kidneys, ureter, bladder, urethra
Term
The prominent indentation on the medial surface of the kidney is the?
Definition
Hilum
Term
List the functions of the kidney
Definition
remove metabolic waste and excrete it, control the rate of RBC formation with hormone, regulate blood pressure via release of renin, and regulate volume, composition, and pH of body fluids.
Term
Typical renal blood flow is about_____ percent of cardiac output under resting conditions?
Definition
20%
Term
The outermost layer of the kidney is the>
Definition
fibrous capsule (cortex)
Term
The cavity of kidney that receives urine from the calyces is called the?
Definition
renal pelvis
Term
Triangular or conical structures located in the renal medulla are call?
Definition
Pyramid
Term
Bundles of tissue that extend between pyramids from the cortex are called?
Definition
Renal Column
Term
The expanded beginning of the ureter connects to the____
Definition
Renal Pelvis
Term
____ are large tributaries of the renal pelvis?
Definition
Major calyx
Term
The majority of glomeruli are located in the______ of the kidney.
Definition
Renal Corpuscle (cortex)
Term
Which of these components of the nephron is largely confined to the renal medulla?
Definition
Collecting Ducts
Term
Glomerular (Bowman's) capsule and the glomerulus make up the?
Definition
Renal Corpuscle
Term
The filtrate first passes from the glomerular capsule to the ___
Definition
Proximal Convoluted Tubule
Term
The portion of the nephron that empties into the collecting duct is the ?
Definition
Distal Convoluted Tubule
Term
The U-shaped segment of the nephron is the?
Definition
Nephron Loop (Loop of Henle)
Term
The primary function of the proximal convoluted tubule is?
Definition
Absorption of ions, organic molecules, vitamins, and water.
Term
The glomeruli are best described as being tufts of ?
Definition
Capillaries
Term
The ____ delivers urine to a minor calyx?
Definition
Papillary ducts
Term
Substances secreted by the distal convoluted tubule include?
Definition
Hydrogen ions, ammonium ions, creatinine, drugs, and toxins
Term
List each Renal Segment and their function ( look at #26 on study guide)
Definition
Renal corpuscle, proximal convoluted tubule PCT, Nephron Loop,Distal convoluted tubule DCT, Collecting System, Peritubular capillaries, and Vasa Recta
Term
Approximately ____ liters of glomerular filtrate enter glomerular capsules each day?
Definition
180
Term
The filtration barrier in the renal corpuscle consists of 3 layers;
Definition
endothelium of glomerulus, dense layer of glomerulus, and podocyte filtration slits
Term
The structure known as the juxtaglomerular apparatus is located near the?
Definition
Glomerulus
Term
Substances larger than _____ do not pass through the filtration membrane.
Definition
Albumins
Term
The process of filtration is driven by____?
Definition
Blood hydrostatic pressure
Term
Under normal conditions, glomerulus filtration depends on the 3 main pressures. What are they?
Definition
blood hydrostatic pressure, capsular hydrostatic pressure, blood colloid osmotic pressure
Term
What is the formula for net filtration pressure (FP)?
Definition
NFP=HPg-(OPg+HPc)
Term
One mechanism the kidney uses to raise systemic blood pressure is to ______ secretion of renin by the juxtaglomerular complex?
Definition
Increase
Term
As the filtrate passes through the renal tubules, approximately what percentage is reabsorbed and returned to the circulation?
Definition
99%
Term
What percentage of nutrients (glucose, amino acids, etc.) are reabsorbed in the Proximal convoluted tubule?
Definition
99%
Term
In response to increased levels of aldosterone, the kidneys produce urine with a ____ concentration of sodium ions?
Definition
Lower
Term
Which of the following is greater? The concentration of solute in the filtrate at the beginning of the nephron loop, or the concentration of solute in the filtrate at the bottom of the nephron loop?
Definition
The concentration of solute in the filtrate at the bottom of the nephron loop
Term
When the level of ADH ____ more urin is produced and the osmolarity of the urine decreases?
Definition
Decreases
Term
Antidiuretic hormone ____ the permeability of the collecting ducts to water?
Definition
increases
Term
A patient excretes a large volume of very diluted urine on a continuing basis. This may be due to ?
Definition
Absence of ADH
Term
____ is an inability of the kidneys to excrete adequately to maintain homeostasis
Definition
Renal failure
Term
Place the following in order by which Urine passes
Definition
Collecting duct, renal pelvis, ureter, bladder, urethra
Term
The ureters and urinary bladder are lined by____ epithelium.
Definition
Transitional
Term
During the ____, stimulation of stretch receptors in the bladder wall send impulses to the sacral cord.
Definition
Micturition reflex
Term
85% of nephrons in the human kidney are located in the _____ and have short nephron loops.
Definition
Cortex
Term
The filtration pressure at the glomerulus is equal to______?
Definition
blood hydrostatics pressure - (capsular hydrostatic pressure + blood colloid osmotic pressure)
Term
The amount of filtrate produced by the kidneys each minute is called ?
Definition
Glomerulus filtration rate
Term
Insoluble deposits that form within the urinary tract from calcium salts, magnesium salts, or uric acid are called kidney stones or renal _____?
Definition
Calculi
Supporting users have an ad free experience!