Which of the following is TRUE with regards the kidney? * Superior to the kidney is a gland that secretes aldosterone. The concave surface of the kidney is lateral. The renal medulla is more superficial than the renal cortex. The kidneys are intraperitoneal. The left kidney sits slightly lower than the right.

Explain the three main steps involved urine formation? (filtration, reabsorption and secretion)

From the previous question, In which section of the kidney tubules does this potassium movement occur? Is that movement passive or active?

For each of the following processes, list the structures in the urinary system where they occur Filtration: Secretion: Excretion: Reabsorption:

From the previous question, In which section of the kidney tubules does this phosphorus movement occur? Is that movement passive or active?

Describe how each of the following works to regulate reabsorption and secretion, so as to affect urine volume and composition: renin-angiotensin system, aldosterone and antidiuretic hormone.

The decreased renal excretion of sodium and water is caused by what substance?

What is the structure of the renal corpuscle ?How does its structure contribute to the filtering of the blood?

Why would the differential renal vein renin test show an increase in the blocked renal artery side secretion of renin, yet a drop in renin levels on the other (normal) side?

The lumen of the ureter is continuous with a space inside the kidney. This space has branching extensions. What are the names of this space and its extensions?