A&P II - Ch. 26 Quiz Questions (Urinary System)

Renal columns are

bundles of tissue that extend between pyramids from the cortex

In response to increased levels of aldosterone, the kidneys produce

urine with a lower concentration of sodium ions

The thick ascending limb of the nephron loop (loop of Henle) is almost impermeable to water, but reabsorbs sodium, potassium, and chloride ions from the filtrate).

Both are true and relate to production of a dilute urine.

4

Use Figure 26-2 to answer the following questions: Where does countercurrent multiplication occur?

renal pyramid

Use Figure 26-1 to answer the following questions: Identify the structure labeled "3."

renal papilla

Use Figure 26-1 to answer the following questions: Identify the structure labeled "9."

filtration

Use Figure 26-2 to answer the following questions: What physiological process occurs at the structure labeled "1"?

Substances larger than ________ are normally not allowed to pass through the filtration membrane.

albumin

Functions of the urinary system include

all of the above (helping to stabilize blood pH, regulation of plasma concentration of certain ions, regulation of blood volume and blood pressure, and conservation of valuable nutrients)

Substances secreted by the distal convoluted tubule include

all of the above (hydrogen and potassium ions, creatinine, penicillin)

The majority of glomeruli are located in the ________ of the kidney.

cortex

Sympathetic stimulation of the kidney can do all of the following, except

increase the glomerular filtration rate

Major calyces are

large branches of the renal pelvis

All of the following are true of the kidneys, except that they are

located partly within the pelvic cavity