Exam 18: The Urinary System: Renal Function

What Starling force, which drives fluid out of the glomerulus, is relatively high (~60 mm Hg)due to the resistance of the efferent arterioles?

Blood leaves the and enters the glomerulus.

During tubuloglomerular feedback of glomerular filtration rate, paracrines secreted from what structure(s)cause constriction of the afferent arteriole?

Despite being less than 1% of body weight, the kidneys receive what percent of resting cardiac output?

During what renal process are molecules selectively removed from the tubule lumen, moved into the interstitial space, and removed from the kidneys by the peritubular capillaries and the vasa recta?

Bowman's capsule consists of the renal corpuscle and glomerulus.

The clearance of which of the following substances is normally zero?

What are the specialized cells of the juxtaglomerular apparatus in the distal tubule called?

What structure is formed by the thickening of the smooth muscle cell wall surrounding the bladder that regulates the flow of urine from the bladder?

Constriction of which vessel, by intrinsic or extrinsic mechanisms, decreases glomerular filtration rate?

Which cells of the afferent arteriole secrete renin?

Glomerular filtration rate is controlled by both intrinsic and extrinsic mechanisms. Describe the extrinsic mechanism with particular emphasis on how it would respond to a hemorrhage.

Solutes that enter the lumen of the renal tubules are excreted unless they are

Which of the following is NOT a function of the kidneys?

What is the GFR/renal plasma flow equal to?

Which of the following describes movement from renal tubules into the peritubular capillaries?

Glomerular capillary hydrostatic pressure is greater than systemic capillary hydrostatic pressure.

A decrease in mean arterial pressure will act exclusively in an extrinsic manner to affect glomerular filtration rate.

If solute A is actively transported across the basolateral membrane into the epithelial cell and then passively crosses the apical membrane, then is A (reabsorbed / secreted)across this epithelium.

(Clearance / Secretion)is a measure of the volume of plasma from which a substance is completely removed by the kidneys.