Which of the following instrument records the electrical activity of the heart?

Which of the following instrument records the electrical activity of the heart? Correct Answer ECG(Electrocardiograph)

The electrocardiograph (ECG) is an instrument, which records the electrical activity of the heart. Electrical signals from the heart characteristically precede the normal mechanical function and monitoring of these signals has great clinical significance.
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Related Questions

S1:The heart is pump of life.
P :They have even succeeded in heart transplants.
Q :Nowadays surgeons are able to stop a patients heart and carry out complicated operations.
R :A few years ago it was impossible to operate on a patient whose heart was not working properly.
S :If heart stops we die in about five minutes.
S6:All this was made possible by the invention of heart-lung machine.

The Proper sequence should be:
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In a group of people 5 play golf, 8 play cricket and 3 play both. It is known that the heart rate of golf player is 98bpm, the heart rate of a cricket player is 102bpm and the heart rate of people who play both is 100bpm. Find the average heart rate of the group.
________________ records the electrical activity of heart.
Consider the following statements.
1. ECG (Electrocardiogram) is a test that measures the electrical activity of the heart.
2. ECG is used to measure the rate and regularity of heart beats.
Which of the statement(s) given above is/are correct?
Which of the following are true? (i) A programming language option does not permit global variables of any king and has no nesting of procedures/functions, but permits recursion can be implemented with static storage allocation (ii) Multi-level access link (or display) arrangement is needed to arrange activation records-only if the programming language being implemented has nesting of procedures/function (iii) Recursion in programming languages cannot be implemented with dynamic storage allocation (iv) Nesting of procedures/functions and recursion require a dynamic heap allocation scheme and cannot be implemented with a stack-based allocation scheme for activation records (v) Languages which permit a function to return a function as its result cannot be implemented with a stack-based storage allocation scheme for activation records.
Proposition of the Law of Evidence is that
1. Proceedings of Legislature may be proved by the records certified by a member present in the proceedings.
2. Acts of the Central Government may be proved by the records of the department, certified by heads of the departments.
3. Acts of the state may be proved by the document purporting to be printed by the order of such Government.
4. Acts of the State Government may be proved by records of the department certified by the head of the corresponding department of the Central Government.
ECG records electrical changes in which of the following layers of the heart, mark the correct option.
S1: There is no transportation system in any city that can compare in efficiency with the circulatory system of the body.
P: The larger one goes from the heart to the various other parts of the body.
Q: If you imagine two systems of pipes, one large and one small, both meeting at a central pumping station, you'll have an idea of the circulatory system.
R: These pipes are called arteries, veins and capillaries.
S: The smaller system of pipes goes from the heart to the lungs and back.
S6: Arteries are blood vessels in which blood is going away from the heart.

The Proper sequence should be:
Which of the following is the technique of analyzing the electrical activity of the heart by obtaining ECG’s?