Exam 17: Physiology of the Kidneys

Inulin is a good measure of GFR because it is filtered but neither reabsorbed nor secreted by the kidneys.

The main region of aldosterone action is the

Under conditions of severe dehydration approximately 99.2% of the glomerular ultrafiltrate volume is reabsorbed.

An increase of blood volume will cause secretion of ADH.

Inhibiting the actions of __________ would impair the ability of the kidney to regulate pH of the blood.

Through renal autoregulation,an increase in blood pressure will cause the afferent arteriole to ____ and therefore the GFR will ____.

Which sphincter is under voluntary control?

Which test can be used to detect renal damage from diabetes or hypertension?

The __________ surface of the simple cuboidal epithelia in the proximal convoluted tubule contains microvilli.

Highly elevated blood pressure would stimulate an increased glomerular filtration rate.

What creates a Na⁺ concentration gradient in the proximal tubule?

Shock-wave lithotripsy is used to treat

Increased aldosterone secretion stimulates renal potassium retention.

Blood pressure is regulated through the actions of the kidneys.

The proximal convoluted tubule reabsorbs approximately 65% of water and ions salt entering it.

The renal plasma clearance of a substance that is filtered and reabsorbed must be less than the GFR.

Which of the following is NOT a potential filtration barrier in the glomerular capsule?

The concentration of renal filtrate is highest in the

What structure is an arteriole capillary bed - drained by an arteriole instead of a venule?

The vasa recta have the net effect of concentrating solutes in the interstitial fluid of the renal medulla.