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MODEL PAPER 8 — BIOLOGY STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYMODEL PAPER 83 Marks
Question
What is an artificial pacemaker? Explain.
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Answer

Artificial pacemaker: It is an artificial electronic device. It constantly sends a small amount of electrical charge to maintain rhythmicity of the heart. It is implanted in the upper thoracic region subcutaneously having a connection with the heart. It contains a pulse generator having a cell to produce electrical impulse. The lead in the form of a wire transmits the impulse. An electrode is connected to the portion of the heart where the impulse is transmitted.

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