Which of the following is NOT TRUE?
A) Cardiac cells can contract without having been depolarized.
B) Cardiac cells must be depolarized before they can contract.
C) Cardiac contraction occurs as a result of phase 0 of the action potential.
D) Cardiac contraction requires the presence of calcium ions.
Correct Answer:
Verified
Q6: The ST segment is located between the
A)P
Q9: The T wave represents
A)Atrial depolarization.
B)Atrial repolarization.
C)Ventricular depolarization.
D)Ventricular
Q10: For purposes of determining the presence of
Q12: In the action potential,phase 0 is
A)Depolarization.
B)Plateau.
C)Rapid repolarization.
D)Rest.
Q15: The QRS complex represents
A)Atrial depolarization.
B)Atrial repolarization.
C)Ventricular depolarization.
D)Ventricular
Q16: The EKG is a recording of the
A)Heart's
Q17: +20 mV is the
A)Resting transmembrane potential.
B)Transmembrane potential
Q18: In the action potential,phase 3 is
A)Depolarization.
B)Rapid repolarization.
C)Plateau.
D)Rest.
Q19: The relative refractory period extends from the
A)Beginning
Q20: Which of the following correctly describes the
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents