Exam 13: The Urinary System

The ____________________ transforms many foreign organic compounds into ionic form, which facilitates their elimination from the body because such conversion enables them to be secreted by the organic anion transport system.

Match the renal structures or activities with the correct characteristics, labelled a. through p. -efferent arteriole

The pores in the glomerular membrane are too small for albumin to pass through.

Which of these statements applies to renal excretion

The plasma clearance of a substance can be used to calculate the glomerular filtration rate (GFR) if that substance is freely filtered at the glomerulus and is

Match the substances, labelled a. through f., with the processes listed. -filtered and both actively reabsorbed and actively secreted

For a substance to be actively reabsorbed, all of the steps of transepithelial transport require energy expenditure.

Glomerular filtration occurs primarily by active transport.

Vasa recta are associated with which of these structures

Match the effects, labelled a. through c., with the statements. (Options may be used more than once or not at all.) -Increased angiotensin II activation __________ aldosterone secretion.

Which of these statements does NOT describe juxtamedullary nephrons

The energy-dependent step in Na⁺ reabsorption involves the ____________________ located at the ____________________ membrane of the tubular cell.

____________________ is an actively reabsorbed substance that does not have a tubular maximum for reabsorption.

The secretion of vasopressin increases if the extracellular fluid becomes hypertonic.

Angiotensinogen is produced by the kidney.

The micturition reflex is initiated by stimulating ____________________ receptors in the bladder.

The permeability and transport properties of the loops of Henle of juxtamedullary nephrons are important in establishing the vertical osmotic gradient in the renal medulla.

How does urine move from the kidneys to the urinary bladder through the ureters

Which statement describes the process of glomerular filtration

Afferent arteriolar vasoconstriction ____________________ blood flow into the glomerulus, which causes the glomerular-capillary blood pressure to ____________________, leading to a(n) ____________________ in the net filtration pressure and a resultant ____________________ in the GFR.