How can we help?

You can also find more resources in our Help Center.

Chapter 23 Urinary System (Lab)

STUDY
PLAY
What is the outer region of the kidney called?
(Outer) cortex
Describe the kidneys with regard to their position to the parietal peritoneum.
Posterior to parietal peritoneum (retroperitoneal)
What takes urine directly to the urinary bladder?
Ureters
What takes urine from the urinary bladder to the exterior of the body?
Urethra
What blood vessel takes blood from the kidney?
Renal vein
What is the triangular region on the posterior urinary bladder called?
Trigone
Kidney filtration occurs in a cluster of capillaries called what?
Glomerulus
Distal convoluted tubules flow directly into what structures?
Collecting ducts
The blunt point at the end of each renal pyramid is called what?
Renal papilla
What is the renal capsule?
Connective tissue that covers a kidney
Urine flows from the tip of a renal pyramid into what structure?
Minor calyx
Blood in glomerulus next flows to what arteriole?
Efferent arteriole
Which shows the greatest anatomical difference between the sexes: ureters, urinary bladder, or urethra?
Urethra
Blood in an arcuate vein next flows to what structure?
Interlobar veins
What histological feature distinguishes a proximal convoluted tubule from a distal convoluted tubule?
Brush borders
Name the four parts of the nephron.
Renal corpuscle, proximal convoluted tubule, loop of Henle, distal convoluted tubule
What type of cell lines the urinary bladder?
Transitional epithelium
Assume that a person did not collect a midstream sample of urine but collected a sample from the beginning of urination. What additional materials might be in greater numbers in this sample?
Additional bacteria & yeast
What metabolic by-product from hemoglobin colors the urine yellow?
Urochrome
How can adequate water intake be judged by the color of urine?
Urine should be clear or pale yellow colored. If urine is deep yellow: indication of absence of intake of multivitamins and water
What is the name of the condition of having measurable amounts of sugar in urine?
Glycosuria
What is the normal value for sugar in urine?
No sugar in urine
What substance in urine creates ketonuria?
Ketones
What is hematuria?
Blood in urine
There are about 200 grams of protein in the blood plasma and normally none in urine. What mechanism keeps protein out of the urine, and what structure might be damaged if protein is found in significant amounts in urine?
Glomerular walls normally do not allow for blood protein to pass into the nephron
Elevated levels of white blood cells produce what condition in urine?
Pyuria
If you process 180 liters of water through the kidney each day, yet produce only 1.8 liters of urine, approximately how efficient are your kidneys at reabsorbing the water passing through them?
The kidneys are 99% efficient at reabsorbing water
Which one of the following urine sediments is probably due to reduced water intake? (Vegetable fibers, crystals, epithelial cells, & bacterial cells)
Crystals
What cells found in the urine originally come from the walls of the urethra?
Squamous epithelial cells
What cells in the urine come from the wall of the urinary bladder?
Transitional epithelial cells
If your urine contained large numbers of calcium crystals, what might this tell you about the amount of water you drink?
You are not drinking enough water