Which portion of the renal tubule has a brush border created by the presence of many microvilli?

The portion of the renal tubule through which filtrate initially flows is known as the:

Reabsorption of filtered glucose from the filtrate into the cells of the proximal tubule is by:

Each of the following is typical of urine EXCEPT:

What is coupled with glucose reabsorption using a symporter in the early part of the proximal tubule?

The reabsorption of bicarbonate ions in the proximal tubule helps regulate:

Sympathetic stimulation of the kidney can do all of the following, EXCEPT:

Items reclaimed during tubular reabsorption are moved to the interstitial fluids and then to the:

Where are creatinine, ammonium ions, small amounts of urea, and drugs such as penicillin typically secreted?

What is NOT a major function of the kidneys?