Answer: sphygmomanometer.
- A sphygmomanometer
- B a stethoscope
- C a thermometer
- D a barometer
Correct answer: A. sphygmomanometer
Explanation: A sphygmomanometer measures arterial blood pressure.
A single ECG cycle: the P wave marks atrial depolarisation (contraction signal), the large QRS complex marks ventricular depolarisation, and the T wave marks ventricular repolarisation (recovery) before the next cycle begins.
Concept context
Blood, lymph, the heart, the cardiac cycle, blood pressure, and ECG. High NEET weightage.