Biological termEasy0.5 marks
4(b)
Give appropriate biological or technical terms for the following:
The relaxation phase of the heart.
Topic: Diastole
Previous-year question practice database
Answer
Exam answer
DIASTOLE.
Explanation
DIASTOLE is relaxation; SYSTOLE is contraction. During diastole the chamber FILLS with blood and the pressure inside FALLS.
Fix them by meaning: SYSTOLE = squeeze, DIASTOLE = dilate.
THE PRACTICAL LINK worth holding: a blood pressure reading of 120/80 is exactly these two figures — the SYSTOLIC pressure when the ventricles contract, and the DIASTOLIC pressure when they relax. That single connection makes both terms impossible to forget.
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