The tall \"spike\" (QRS complex) in an electrocardiogram (EKG or ECG) represents

Question

The tall "spike" (QRS complex) in an electrocardiogram (EKG or ECG) represents: a) depolarization of the atria b) depolarization of the ventricles c) delay of the signal at the AV node d) repolarization of the ventricles after they contract The force that drives fluid out of a capillary is primarily driven by: a) blood pressure from the arterial side of the capillary b) the difference in osmotic pressure inside vs. outside the capillary c) active transport across the capillary membrane, powered by ATP d) suction from muscle contractions on the venous side of the capillary All of the following parts of a nephron are found in the cortex of the kidney except the: a) glomerulus b) proximal tubule d) loop of Henle d) distal tubule

Explanation / Answer

48. b) depolarization of the ventricles (explanation - The 3 graphical deflections that are seen on a typical ECG combines to form one graphical representation called QRS complex. It is visually very much prominent. It represents the depolarization of the right and left ventricles.)

50. d) Loop of Henle

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