WCU PHYS 261 Final Exam Preparation
Newest 2026 Questions and Correct
Detailed Answers Already Graded A+
What does renin produce? - CORRECT ANSWER-Angiotensin I.
What is a glomerulus? - CORRECT ANSWER-A 'ball' of capillaries within
Bowman's capsule.
What happens to blood volume, blood pressure, and osmolarity during
dehydration? - CORRECT ANSWER-Decreased blood volume, decreased blood
pressure, increased osmolarity.
What do G cells of the stomach secrete? - CORRECT ANSWER-Gastrin.
What results from increased angiotensin II levels? - CORRECT ANSWER-
Increased blood volume, retention of water, blood pressure, and retention of
sodium ions at the kidney.
,What do the Bowman's capsule and glomerulus make up? - CORRECT
ANSWER-Renal corpuscle.
Which ion is NOT directly regulated by the kidney? - CORRECT ANSWER-OH-.
Where are short reflexes of the digestive system integrated? - CORRECT
ANSWER-Enteric nervous system.
What is filtration in the kidneys? - CORRECT ANSWER-Movement from the
glomerulus to the nephron lumen.
How do bile salts aid in fat digestion? - CORRECT ANSWER-By emulsifying large
fat droplets.
What is the function of transverse tubules? - CORRECT ANSWER-To rapidly
conduct action potentials to the interior of the muscle fiber.
Which is greater: blood pressure when the peripheral vessels constrict or dilate? -
CORRECT ANSWER-Blood pressure when the peripheral vessels constrict.
, What does the P wave of an ECG correspond to? - CORRECT ANSWER-
Depolarization of the atria.
What reflex complements a withdrawal reflex? - CORRECT ANSWER-Crossed
extensor reflex.
What happens when your instructor announces a pop quiz? - CORRECT
ANSWER-Increased sympathetic signaling and increased cardiac output.
What protein is activated by the Ca2+-calmodulin complex? - CORRECT
ANSWER-Myosin light chain kinase.
When is end-systolic volume (ESV) greatest? - CORRECT ANSWER-When
parasympathetic stimulation of the heart is increased.
What is one repeating unit of the striated muscle banding pattern called? -
CORRECT ANSWER-Sarcomere.
What initiates the contraction cycle in muscle fibers? - CORRECT ANSWER-The
rise in Ca2+ released from the sarcoplasmic reticulum (SR).
Newest 2026 Questions and Correct
Detailed Answers Already Graded A+
What does renin produce? - CORRECT ANSWER-Angiotensin I.
What is a glomerulus? - CORRECT ANSWER-A 'ball' of capillaries within
Bowman's capsule.
What happens to blood volume, blood pressure, and osmolarity during
dehydration? - CORRECT ANSWER-Decreased blood volume, decreased blood
pressure, increased osmolarity.
What do G cells of the stomach secrete? - CORRECT ANSWER-Gastrin.
What results from increased angiotensin II levels? - CORRECT ANSWER-
Increased blood volume, retention of water, blood pressure, and retention of
sodium ions at the kidney.
,What do the Bowman's capsule and glomerulus make up? - CORRECT
ANSWER-Renal corpuscle.
Which ion is NOT directly regulated by the kidney? - CORRECT ANSWER-OH-.
Where are short reflexes of the digestive system integrated? - CORRECT
ANSWER-Enteric nervous system.
What is filtration in the kidneys? - CORRECT ANSWER-Movement from the
glomerulus to the nephron lumen.
How do bile salts aid in fat digestion? - CORRECT ANSWER-By emulsifying large
fat droplets.
What is the function of transverse tubules? - CORRECT ANSWER-To rapidly
conduct action potentials to the interior of the muscle fiber.
Which is greater: blood pressure when the peripheral vessels constrict or dilate? -
CORRECT ANSWER-Blood pressure when the peripheral vessels constrict.
, What does the P wave of an ECG correspond to? - CORRECT ANSWER-
Depolarization of the atria.
What reflex complements a withdrawal reflex? - CORRECT ANSWER-Crossed
extensor reflex.
What happens when your instructor announces a pop quiz? - CORRECT
ANSWER-Increased sympathetic signaling and increased cardiac output.
What protein is activated by the Ca2+-calmodulin complex? - CORRECT
ANSWER-Myosin light chain kinase.
When is end-systolic volume (ESV) greatest? - CORRECT ANSWER-When
parasympathetic stimulation of the heart is increased.
What is one repeating unit of the striated muscle banding pattern called? -
CORRECT ANSWER-Sarcomere.
What initiates the contraction cycle in muscle fibers? - CORRECT ANSWER-The
rise in Ca2+ released from the sarcoplasmic reticulum (SR).
