2026-2027 Actual Complete Real Exam Questions And
Correct Answers (Verified Answers) Already Graded A+
| Guaranteed Success!! | Newest Exam | Just Released!!
The heart receives most of its own blood supply via -
ANSWER -coronary
arteries
Regulation of the heart rate, speed of electrical conduction and
strength of contraction are influenced by the brain via the
_______ nervous system - ANSWER -autonomic
The cardio accelerator center - ANSWER -Is part of the
sympathetic nervous
system.
How much blood coming into the ventricles flows passsively
through the aorta -
ANSWER -
70%
During which phase of the cardiac cycle do the coronary
arteries fill? -
,ANSWER -early
diastole
During depolarization - ANSWER -Impulses are generated
and transmitted
when positively charged ions move inside the cell
causing the interior to
become positively
charged
The most muscular chamber of the heart that forces blood
through the aortic
valve into the aorta would be the - ANSWER -
left ventricle
T wave - ANSWER -Is normally oriented in the same direction as
the preceding
QRS
The intuition of the impulse in the sa node and its movement
through the atria
produces - ANSWER -P
wave
What is used as a reference point to identify the changing
electrical impulses? -
ANSWER -
Isoelectric line
, Which lead II the positive electrode is positioned on the -
ANSWER -Left leg
A standardization mark is - ANSWER -10 mm high, 2 large
squares high
An electrical current traveling toward a positive electrode
produces a waveform
that - ANSWER -points
upward
The most accurate way to measure heart rate is - ANSWER -
1500 method
The electrocardiogram measures - ANSWER -heart's electrical
activity
A mini stroke lasting several minutes to few hours but has
no permanent
damage - ANSWER -TIA-transient
ischemic attack
The limb leads are obtained by placing electrodes on the -
ANSWER -right arm,
left arm, left
leg
The first heart sound heard is the ________ valve and the
_____ closing -