Exam 15: The Urinary System

Movement of sodium across the cells of the collecting duct relies on which one of the following?

Given the following events involved in the regulation of blood volume, which one of the following answers best represents the order in which these events occurs? 1. sodium reabsorbed from distal tubules and collecting ducts 3) secretion of renin from juxtaglomerular apparatus 2) secretion of aldosterone 4) decrease in blood volume 5) production of angiotensin II

________ not only stimulates the release of aldosterone from the adrenal glands but also causes constriction of small blood vessels (vasoconstriction).

Match each of the following disorders associated with the urinary system to its description. -condition caused by damage to the glomerulus; results in the presence of protein in the urine

The primary sources of the nitrogenous wastes that are eliminated by the kidneys are

Blood containing metabolic waste is transported to the kidneys by the renal vein; the renal artery removes blood from the kidneys once the waste has been removed.

Which one of the following is TRUE regarding erythropoietin?

Not only are the kidneys considered organs of excretion, but they have an endocrine function as well as an important role in the maintenance of homeostasis through the regulation of blood pH.

Continuous ambulatory peritoneal dialysis involves the circulation of a patient's blood through an artificial kidney machine in order to remove metabolic waste and excess ions; this procedure can now be done in the home.

Using the letter choices on the figure above, identify the organs of the urinary system. -delivers urine to the bladder

Sodium is moved out of the proximal tubule by ________.

Choose the correct order of steps for the synthesis of Vitamin D. a. Inactive vitamin D is transported to the liver where it is modified. B) Inactive, chemically altered vitamin D is transported to the kidneys. C) UV light strikes the skin and converts a steroid molecule into an inactive form of vitamin D. D) Vitamin D is activated under the influence of PTH. A) a, b, c, d B) c, b, a, d C) c, a, b, d D) a, c, b, d E) d, a, c, b

The major nitrogenous waste product in urine is the ammonium ion.

Tubular reabsorption occurs when most of the fluid and solutes move back into the ________.

Over 99% of the water filtered through the glomerulus is reabsorbed. At which one of the following locations does most of this water reabsorption occur?

The hairpin design of the loop of Henle allows events on one side of the loop to influence the events on the other side, by a process referred to as

Using the figure above, identify in which one of the following locations a nephron would be found. A) A B) B C) C D) D E) B and C Answer: E Topic: Sec. 15.3 Bloom's: Remembering/Understanding LO: 15.3a GLO: G1 -The efferent arteriole carries blood from the glomerulus to the

Urination depends on

Nutrients, water, and ions reabsorbed by the proximal and distal tubules enter the ________ capillaries.

Match each region of the nephron to its description. -region where blood plasma fluid is filtered from the blood into the nephron