Question:
Which of the following instrument is used for recording the movements imparted to the body with each beat of the heart cycle?
Which of the following instrument is used for recording the movements imparted to the body with each beat of the heart cycle?
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Remember: Ballisto-} implies bodily movement or momentum. So, a Ballistocardiograph} records mechanical movements caused by cardiac activity. This distinguishes it from instruments like Apexcardiograph} (local heart movement) or EOG/ERG} (related to the eyes).
Updated On: May 25, 2025
- \( \text{Apexcardiograph} \)
- \( \text{Ballistocardiograph} \)
- \( \text{Electro-oculograph} \)
- \( \text{Electro-retinograph} \)
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The Correct Option is B
Solution and Explanation
Let’s examine the instruments to identify the correct one:
- Apexcardiograph: Records local mechanical movements of the chest wall due to heart activity. It gives information about apical impulse but not whole-body movements.
- Ballistocardiograph: Measures the recoil movements of the body resulting from the heart ejecting blood into the vessels. It captures the mechanical activity transmitted through the body with each heartbeat.
- Electro-oculograph (EOG): Measures the resting potential of the retina and detects eye movement.
- Electro-retinograph (ERG): Records electrical responses of the retina to light stimulus.
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