Question

ventricular depolarization occurs during the ______ on the ekg. a p wave b qrs complex c t wave d uvw wave

Explanation:

To solve this, we analyze each EKG wave:

• Option A (P wave): Represents atrial depolarization, not ventricular.
• Option B (QRS complex): Corresponds to ventricular depolarization (contraction).
• Option C (T wave): Represents ventricular repolarization, not depolarization.
• Option D (UVW wave): Not a standard EKG component for ventricular depolarization.

Answer:

B. QRS complex