★ Cardiology Quiz
Which ECG wave represents ventricular repolarization?
A. P wave
B. T wave
C. QRS complex
D. U wave
Select your answer:

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Nervous System › ViewThe brain and spinal cord are covered and protected by _________.
A. nerves
B. vertebrae
C. meninges
D. fascia
Excretion in Humans › View
Urine is released and flows into the bladder through the ________.
A. ureter
B. urethra