ECG

Which one of the following represents the correct path for the transmission of an impulse in the intrinsic conduction system of the heart?

• SA node, AV node, Bundle of His, bundle & branches, Purkinje fibers,
• AV node, Bundle of His, SA node, Purkinje fibers, bundle branches
• Purkinjee fibers,SA node, Bundle of His, AV node, bundle branches
• SA node, Bundle of His, bundle branches, Purkinje fibers, AV node

---------------is the pacemaker of the heart?

• SA Node
• AV Node
• Purkinje fibres
• Bundle of his

The cardiac conduction system is run by two nodes which are:

• Sinoatrial, atrioventricular
• Systolic, diastolic
• Atrial, ventricle
• All of the above

What is the full form of ECG?

• Electro cardio gram
• Electric cardiac gramophone
• Both of these
• None of these

ECG detects what type of changes?

• pH changes
• Position changes
• Electric changes
• All of these

How many leads are used in ECG?

• 13.0
• 11.0
• 7.0
• None of these

ECG gives a graph of, which of the following?

• Current v/s time
• Displacement v/s time
• Voltage v/s time
• Heartbeat v/s time

ECG provides-

• Intensity of heart's contractions
• Time intervals between contractions
• Both of these
• None of these

The process of recording the electrical activity of the heart using electrodes placed on the skin is termed as

• Electrocardiogram
• Electrocardiography
• Electrosurgery
• Electroencephalography

-----------------is a test which graphically represents the electrical activity of the heart.

• Electrosurgery
• Encephalography
• Electrocardiography
• Electrocardiogram