WCU PHYS 261 Final Exam Review EXAM Questions with 100%
Correct Answers | Verified | Updated (Actual Exam) 2025\2026
The volume of blood pumped out of the heart from one ventricle during one
contraction - (ANSWERS)Stroke Volume (SV)
The rapid depolarization phase of the action potentials of myocardial
contractile cells is due to which ion(s)? - (ANSWERS)Na+ only
The volume of blood in the ventricle available to be pumped out of the heart
during one contraction - (ANSWERS)End- diastolic volume (EDV)
The volume of blood left in the ventricle after it contracts -
(ANSWERS)End- systolic volume (ESV)
The volume of blood ejected from each ventricle during a contraction -
(ANSWERS)Stroke volume (SV)
What happens when calcium binds to troponin? -
(ANSWERS)Tropomyosin is pulled away from the myosin-binding site on
actin.
The driving force for blood flow is a(n) ________ gradient. -
(ANSWERS)pressure
Which would NOT cause an increase in blood pressure? - (ANSWERS)a
decrease in cardiac output
Match the name of the wave with the correlated event:
1/9
, WCU PHYS 261 Final Exam Review EXAM Questions with 100%
Correct Answers | Verified | Updated (Actual Exam) 2025\2026
Ventricular depolarization - (ANSWERS)QRS complex
The function of transverse tubules is to - (ANSWERS)rapidly conduct
action potentials to the interior of the muscle fiber.
Which is greater:
A) blood pressure when the peripheral vessels constrict
B) blood pressure when the peripheral vessels dilate - (ANSWERS)A)
blood pressure when the peripheral vessels constrict
The P wave of an ECG corresponds to - (ANSWERS)depolarization of the
atria
The reflex that compliments a withdrawal reflex by making compensatory
adjustments on the opposite side of the body receiving the stimulus is the -
(ANSWERS)crossed extensor reflex
Your instructor announces a pop quiz. Which would you expect? -
(ANSWERS)Increased sympathetic signaling and increased cardiac output
This protein is activated by the Ca2+-calmodulin complex to phosphorylate
the myosin light chain protein. - (ANSWERS)myosin light chain kinase
In which situation would end- systolic volume (ESV) be the greatest? -
(ANSWERS)when parasympathetic stimulation of the heart is increased
2/9
Correct Answers | Verified | Updated (Actual Exam) 2025\2026
The volume of blood pumped out of the heart from one ventricle during one
contraction - (ANSWERS)Stroke Volume (SV)
The rapid depolarization phase of the action potentials of myocardial
contractile cells is due to which ion(s)? - (ANSWERS)Na+ only
The volume of blood in the ventricle available to be pumped out of the heart
during one contraction - (ANSWERS)End- diastolic volume (EDV)
The volume of blood left in the ventricle after it contracts -
(ANSWERS)End- systolic volume (ESV)
The volume of blood ejected from each ventricle during a contraction -
(ANSWERS)Stroke volume (SV)
What happens when calcium binds to troponin? -
(ANSWERS)Tropomyosin is pulled away from the myosin-binding site on
actin.
The driving force for blood flow is a(n) ________ gradient. -
(ANSWERS)pressure
Which would NOT cause an increase in blood pressure? - (ANSWERS)a
decrease in cardiac output
Match the name of the wave with the correlated event:
1/9
, WCU PHYS 261 Final Exam Review EXAM Questions with 100%
Correct Answers | Verified | Updated (Actual Exam) 2025\2026
Ventricular depolarization - (ANSWERS)QRS complex
The function of transverse tubules is to - (ANSWERS)rapidly conduct
action potentials to the interior of the muscle fiber.
Which is greater:
A) blood pressure when the peripheral vessels constrict
B) blood pressure when the peripheral vessels dilate - (ANSWERS)A)
blood pressure when the peripheral vessels constrict
The P wave of an ECG corresponds to - (ANSWERS)depolarization of the
atria
The reflex that compliments a withdrawal reflex by making compensatory
adjustments on the opposite side of the body receiving the stimulus is the -
(ANSWERS)crossed extensor reflex
Your instructor announces a pop quiz. Which would you expect? -
(ANSWERS)Increased sympathetic signaling and increased cardiac output
This protein is activated by the Ca2+-calmodulin complex to phosphorylate
the myosin light chain protein. - (ANSWERS)myosin light chain kinase
In which situation would end- systolic volume (ESV) be the greatest? -
(ANSWERS)when parasympathetic stimulation of the heart is increased
2/9
