3F Video Assignment

Materials that cross the renal tubule wall by passing directly between the epithelial cells do so by _________ transport

precellular

During ________ the directional movement of this material is out of the tubular fluid and into the blood within the peritubular capillies. 

reabsorption

________ transport depends upon the presence of transport proteins in the membrane of renal tubule epithelial cells. 

transcellular

During _________ materials would move out of the blood and first cross the _______ membrane before entering the renal tubule epithelial cell.

secretion; basolateral

Under normal circumstances _______ percent of the filtered glucose gets reabsorbed.  

100

Over half of the filtered sodium moves gets reabsorbed at the PCT.  This occurs as sodium moves from the tubular fluid and into the PCT cell wall by a(n) _______ transport process. It then crosses the basolateral membrane through a(n) ________ transport process.

passsive; active

Intercalated cells of the DCT function to _________ potassium. 

reabsorb

Type A intercalated cells _______ H+

secrete

Tubular fluid first enters the nephron loop at the _______ limb.  Here, the blood floowing through the vasa recta moves in the ________ direction of the tubular fluid.  This enhances the ________ of water that causes the tubular fluid to become ________ concentrated as travels through this nephron loop limb.

descending; opposite; reabsorption; more

At the deepest part of the renal medulla the osmolarity would be approximately _______ mOsm.

1200

Urea recycling occurs as it exits the tubular fluid of the ________ and moves into interstitial spaces of the renal ________ before reentering the tubular fluid at the ________.

collecting duct; medulla; nephron loop

Aldosterone increases sodium ________ and water ________. 

reabsorption; reabsorption

Parathyroid hormone _______ the reabsorption of ________ at the PCT

inhibits; phosphate

Parathyroid hormone ________ the reabsorption of ________ at the DCT.

enhances; calcium

The internal urethral sphincter is under ________ nervous system control

autonomic

The external urethral sphincter is under ________ nervous system control.

somatic

ADH _________ the number of aquaporins on the membrane of _________ cells.  This action __________ urine volume and __________ blood volume and blood pressure.

increases; principal; decreases; increases