Ch. 25 Module 2: Section 25.03-25.05 Dynamic Study Module

Match the following hormone with its action on the urinary system: Angiotensin II.

A powerful vasoconstrictor that also stimulates the secretion of aldosterone

Which of the following homeostatic imbalances is indicative that glomerular blood pressure may be too low to cause filtration?

Anuria

How is Na+ reabsorbed?

By active transport using ATP

Match the appropriate pressure in and around the glomerulus with its correct name: Force that pulls fluid back into the glomerulus from the capsular space.

Colloid osmotic pressure (OPgc)

Match the following part of the nephron with its correct function: Sodium and water reabsorbed under hormonal influence in this region.

Distal convoluted tubule

Which of the following is not part of the filtration membrane?

Extraglomerular mesangial cells

Match the appropriate pressure in and around the glomerulus with its correct name: The force of blood against the walls of the glomerular capillaries.

Glomerular hydrostatic pressure (HPgc)

Match the appropriate pressure in and around the glomerulus with its correct name: Pressure exerted by fluid in the glomerular capsule against the fluids coming out of the glomerulus.

Hydrostatic pressure of the capsular space

Match the correct outcome with its causative glomerular regulation factor: Afferent arterioles dilate in response to a fall in blood pressure.

Increases GFR

Which of the following substances is typically used to measure the GFR?

Inulin

Match the urinary system feature with its correct characteristic: Aldosterone-induced Na+ absorption.

Its reabsorption occurs with K+ efflux

Which of the regions of the nephron do not absorb Na+ by primary active transport?

Loop of Henle, descending limb

Match the correct outcome with its causative glomerular regulation factor: Afferent arterioles constrict in response to a rise in blood pressure, thus restricting the flow of blood into the glomerulus.

Myogenic mechanism

Match the appropriate pressure in and around the glomerulus with its correct name: The relationship of all the pressures that act at the level of the glomerulus; responsible for the formation of filtrate.

Net filtration pressure

Match the following hormone with its action on the urinary system: Aldosterone.

Promotes reabsorption of sodium at the distal convoluted tubule

Which substance would not normally be expected in urine?

Protein

Match the following hormone with its action on the urinary system: ADH.

Regulates water reabsorption at the collecting duct

Match the correct outcome with its causative glomerular regulation factor: A drop in systemic blood pressure triggers the release of an enzyme by the kidneys; the release of the enzyme triggers this regulatory system.

Renin-angiotensin system

Which process results in increased blood pressure in response to hormone release?

Renin-angiotensin-aldosterone mechanism

Match the urinary term with its characteristic: Macula densa cells.

Specialized chemoreceptors

Match the correct outcome with its causative glomerular regulation factor: Neural control overcomes the renal autoregulatory mechanisms.

Sympathetic nervous system

Match the correct outcome with its causative glomerular regulation factor: A drop in flow rate through the nephron or a rise in the osmolality of filtrate triggers regulation by this mechanism.

Tubuloglomerular feedback mechanism

The energy needed for secondary active transport is provided by the __________.

concentration gradient established by Na+

If the afferent arteriole constricts while the efferent arteriole remains unchanged, the glomerular filtration rate __________.

decreases

All of the following functions are carried out in the renal tubules, except __________.

filtration

The most important factor affecting the net filtration pressure in the glomerulus is __________.

hydrostatic pressure in the glomerulus

Anuria may be caused by all of the following except __________.

hypertension

All of the following would stimulate the release of renin from granular cells, except __________.

inhibition by the macula densa cells

When the concentration of ADH increases, __________.

less urine is produced

All of the following are layers of the filtration membrane in the glomerular membrane, except the __________.

renal capsule