The main purpose of the extrinsic control of kidney function is to:

Which letter in the image corresponds to the renal medulla?

Some chemicals we consume (like caffeine) and quite a few drugs that treat hypertension act as diuretic agents. In the following examples, which listed option promotes diuresis (increased urine volume/production)? [The terms in brackets after each letter are your answer choices for that statement.]

A. Number of aquaporins in the collecting duct [increased aquaporins or decreased aquaporins]

B. ADH secretion [increased ADH secretion or decreased ADH secretion]

C. Sodium reabsorption [increased reabsorption or decreased reabsorption] **Assume that water follows the movement of sodium.**

Name one effect in the digestive system of the increased release of the hormone CCK.

Name one organ/location where mechanical breakdown occurs in the GI tract.

Name a structural modification that increases the surface area of the small intestine.

 What is the major function of the organ labeled G?

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

Which cell type of the stomach secretes the HCl that helps activate pepsinogen?