Multiple Choice
Which of the following ECG waves indicates that the ventricles are about to contract?
112
views
18. The Heart
Electrocardiogram (ECG)
Struggling with Anatomy & Physiology?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Which wave on the ECG shows the depolarization of the ventricles?
A
QRS complex
B
P wave
C
T wave
D
U wave
Verified step by step guidance1
Understand the basic components of an ECG (Electrocardiogram) which records the electrical activity of the heart.
Identify the different waves on an ECG: P wave, QRS complex, T wave, and sometimes U wave.
Recognize that the P wave represents atrial depolarization, which is the electrical activity that leads to the contraction of the atria.
Learn that the QRS complex represents ventricular depolarization, which is the electrical activity that leads to the contraction of the ventricles.
Note that the T wave represents ventricular repolarization, which is the process of the ventricles returning to their resting state after contraction.
9:48mWatch next
Master Electrocardiogram with a bite sized video explanation from Bruce Bryan
Start learningRelated Videos
Related Practice
Electrocardiogram (ECG) practice set
Problem sets built by lead tutorsExpert video explanations