BCIT-NSCC-7150 MIDTERM| ECG NSCC 7150
MIDTERM EXAM QUESTIONS WITH
ANSWERS
The ability of Cardiac cells to respond to an electrical stimulus is
referred to as:
Automaticity
Contractility
Conductivity
Excitability
--ANSWER--Excitability
The ability of cardiac cells to receive an electrical stimulus and then
transmit the stimulus to another cardiac cell is known as:
Irritability
Automaticity
Contractility
Conductivity
--ANSWER--Conductivity
Page 1 of 77
,The SA node is located in the:
Right Atrium
Right Ventricle
Purkinje fibre tract
AV septum
--ANSWER--Right atrium
The intrinsic rate of AV junction is
--ANSWER--40-60 bpm
The intrinsic rate of the SA node is
--ANSWER--60-100 bpm
The intrinsic rate of purkinje fibers is
--ANSWER--20-40 bpm
Page 2 of 77
,The Right and left coronary arteries arise from the:
Left ventricle
Right Atrium
Coronary sinus
Trunk of the Aorta
--ANSWER--Trunk of aorta
The primary functions of the myocardial working cells include:
Automaticity
Regeneration
Contraction and relaxation
Impulse propagation
--ANSWER--Contraction and relaxation
Page 3 of 77
, The ability of cardiac pacemaker cells to generate their own electrical
impulses spontaneously without external, or nervous stimulation is
known as:
Automaticity
Contractility
Conductivity
Exciatability
--ANSWER--Automacity
The ECG is used to:
--ANSWER--Evaluate electrical activity in the heart
ECG waveforms are generated by millions of action potentials --
recorded as vectors
The major blood vessel receiving blood from the systemic circulation
is the:
Page 4 of 77
MIDTERM EXAM QUESTIONS WITH
ANSWERS
The ability of Cardiac cells to respond to an electrical stimulus is
referred to as:
Automaticity
Contractility
Conductivity
Excitability
--ANSWER--Excitability
The ability of cardiac cells to receive an electrical stimulus and then
transmit the stimulus to another cardiac cell is known as:
Irritability
Automaticity
Contractility
Conductivity
--ANSWER--Conductivity
Page 1 of 77
,The SA node is located in the:
Right Atrium
Right Ventricle
Purkinje fibre tract
AV septum
--ANSWER--Right atrium
The intrinsic rate of AV junction is
--ANSWER--40-60 bpm
The intrinsic rate of the SA node is
--ANSWER--60-100 bpm
The intrinsic rate of purkinje fibers is
--ANSWER--20-40 bpm
Page 2 of 77
,The Right and left coronary arteries arise from the:
Left ventricle
Right Atrium
Coronary sinus
Trunk of the Aorta
--ANSWER--Trunk of aorta
The primary functions of the myocardial working cells include:
Automaticity
Regeneration
Contraction and relaxation
Impulse propagation
--ANSWER--Contraction and relaxation
Page 3 of 77
, The ability of cardiac pacemaker cells to generate their own electrical
impulses spontaneously without external, or nervous stimulation is
known as:
Automaticity
Contractility
Conductivity
Exciatability
--ANSWER--Automacity
The ECG is used to:
--ANSWER--Evaluate electrical activity in the heart
ECG waveforms are generated by millions of action potentials --
recorded as vectors
The major blood vessel receiving blood from the systemic circulation
is the:
Page 4 of 77
