WCU PHYS 261 FINAL EXAM 2026 ACTUAL
EXAM PAPER WITH VERIFIED ANSWERS
◉ The action potential traveling along the t-tubule changes the
conformation of the Answer: dihydropyridine (DHP) receptor (L-
type calcium channel)
◉ Restoring lost fluid from the capillaries back to the circulatory
system is one of the major functions of the ________ system. Answer:
lymphatic
◉ An increase in plasma potassium levels is properly called Answer:
hyperkalemia
◉ Chief cells secrete Answer: pepsinogen
◉ The hormone vasopressin Answer: stimulates kidneys to retain
water
◉ The enzyme renin is responsible for the production of Answer:
Angiotensin I
, ◉ A glomerulus is Answer: a "ball" of capillaries within Bowman's
capsule
◉ Dehydration leads to ________ blood volume, ________ blood
pressure, and ________ osmolarity. Answer: decreased, decreased,
increased
◉ G cells of the stomach secrete Answer: gastrin
◉ Increased angiotensin II levels would result in increased Answer:
a. blood volume
b. retention of water
c. blood pressure
d. retention of sodium ions at the kidney
(All of the above)
◉ The Bowman's capsule and glomerulus make up the Answer:
renal corpuscle
◉ Which ion is NOT directly regulated by the kidney? Answer: OH-
EXAM PAPER WITH VERIFIED ANSWERS
◉ The action potential traveling along the t-tubule changes the
conformation of the Answer: dihydropyridine (DHP) receptor (L-
type calcium channel)
◉ Restoring lost fluid from the capillaries back to the circulatory
system is one of the major functions of the ________ system. Answer:
lymphatic
◉ An increase in plasma potassium levels is properly called Answer:
hyperkalemia
◉ Chief cells secrete Answer: pepsinogen
◉ The hormone vasopressin Answer: stimulates kidneys to retain
water
◉ The enzyme renin is responsible for the production of Answer:
Angiotensin I
, ◉ A glomerulus is Answer: a "ball" of capillaries within Bowman's
capsule
◉ Dehydration leads to ________ blood volume, ________ blood
pressure, and ________ osmolarity. Answer: decreased, decreased,
increased
◉ G cells of the stomach secrete Answer: gastrin
◉ Increased angiotensin II levels would result in increased Answer:
a. blood volume
b. retention of water
c. blood pressure
d. retention of sodium ions at the kidney
(All of the above)
◉ The Bowman's capsule and glomerulus make up the Answer:
renal corpuscle
◉ Which ion is NOT directly regulated by the kidney? Answer: OH-
