EXAM (SCIENCE) QUESTIONS
AND COMPLETE SOLUTIONS
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Your Exam Plug
, Aldosterone - Answer: Trigger: decreased blood pressure; increased K levels
Function: increases reabsorption of Na from the renal tubules, causing more water to be reabsorbed via
osmosis
Result: increases blood pressure
Antidiuretic Hormone (ADH); also called vasopressin - Answer: Trigger: decreased blood volume;
increased osmolality of blood
Function: prevents fluid loss to maintain blood volume by increasing reabsorption of water from renal
tubules and collecting ducts
Result: increases blood volume
Angiotensin (Renal Hormone) - Answer: Trigger: activated by renin
Function: Constricts arteriolar blood vessels; increases reabsorption of Na and Cl and water retention in
the renal tubules ; stimulates ADH secretion
Result: increases blood pressure
Renin (Renal Hormone) - Answer: Trigger: decreased blood pressure
Function: activates angiotensin; increases secretion of ADH and aldosterone
Result: increases blood pressure
Gastric (Digestive Hormone) - Answer: Stimulus for Release: Arrival of protein in the stomach