14 Below is an ECG trace matched with phases of the cardiac cycle. Are these correctly matched? If so, state yes; if not, indicate no and make the correction.**ECG Trace Diagram Explanation:**The diagram shows an ECG trace with the following waves and intervals:- **P wave:** Corresponds with "Atrial systole"- **QRS complex:** Corresponds with "Ventricular systole"- **T wave to P wave:** Corresponds with "Atrial diastole" Below the ECG trace is a timeline labeled "One cardiac cycle," divided into phases of the cardiac cycle:- **Atrial diastole** (light green)- **Atrial systole** (orange)- **Ventricular diastole** (dark green)- **Ventricular systole** (grey)**Options to evaluate the matching:**- ○ No. The P wave corresponds with the onset of ventricular systole rather than atrial systole- ○ No. The QRS complex corresponds with isovolumetric contraction rather than atrial systole- ○ No. The PQ interval corresponds with the onset of atrial diastole rather than atrial systole- ○ Yes- ○ No. The QRS complex corresponds with the onset of ventricular systole rather than diastole

ECG or Electro Cardiogram is the graph that shows how the heart works such as contraction and relaxation. It helps in identifying different diseases related to heart. Systole means contraction and diastole means relaxation. Option e/ last option is the correct option only. QRS is seen during the ventricular contraction/systole. P is atrial systole. First blood enters into atria and both atria contract to push blood into ventricles. At that time ventricle present in a relax state. Due to atrial contraction, blood enters into ventricle. Ventricles contract so that blood enters into lungs and other parts of body by pulmonary artery and vein respectively. As a result ventricle need to contract and we get a peak of QRS. After that heart enters into a phase of diastole where neither atria nor ventricle contracts and we get a peak of T.The given diagram is not correct (option d is wrong). P wave is seen during the atrial systole. It is not for ventricular systole (option a is wrong). QRS is for ventricle contraction, not for isovolumetric contraction.(option b is wrong). PQ is seen during the atrial contraction (option c is wrong).