What term describes arterial pressure during the heart's relaxation and filling phase (diastole)?

What term describes arterial pressure during the heart's relaxation and filling phase (diastole)?

• A. Systolic Pressure
• B. Diastolic Pressure
• C. Body mechanics
• D. Tachycardia

Answer: (B)

Arterial pressure during the heart’s relaxation and filling phase is called diastolic pressure. As the ventricles finish contracting, they relax and allow blood to fill the chambers, causing the arterial pressure to drop to its lowest level in the cycle. This resting pressure reflects the baseline arterial tone and is the value you see second in a typical blood pressure reading (for example, in 120/80 mmHg, the 80 is the diastolic value). Systolic pressure, by contrast, is the peak pressure during ventricular contraction; tachycardia refers to a fast heart rate, not a pressure phase; and body mechanics is not a term used to describe arterial pressure.

Arterial pressure during the heart’s relaxation and filling phase is called diastolic pressure. As the ventricles finish contracting, they relax and allow blood to fill the chambers, causing the arterial pressure to drop to its lowest level in the cycle. This resting pressure reflects the baseline arterial tone and is the value you see second in a typical blood pressure reading (for example, in 120/80 mmHg, the 80 is the diastolic value). Systolic pressure, by contrast, is the peak pressure during ventricular contraction; tachycardia refers to a fast heart rate, not a pressure phase; and body mechanics is not a term used to describe arterial pressure.