What physiological event does systolic blood pressure measure?
Understand the Problem
The question asks about systolic blood pressure and what physiological event it measures. It provides four options related to heart contractions and arterial pressure.
Answer
Systolic blood pressure measures the pressure when the heart contracts.
Systolic blood pressure measures the maximum pressure in the arteries when the heart muscle contracts (systole) to pump blood throughout the body.
Answer for screen readers
Systolic blood pressure measures the maximum pressure in the arteries when the heart muscle contracts (systole) to pump blood throughout the body.
More Information
Systolic blood pressure is the top number in a blood pressure reading. A normal systolic blood pressure is around 120 mmHg.
Tips
A common mistake is confusing systolic and diastolic blood pressure. Systolic measures the pressure during heart contraction, while diastolic measures the pressure between beats.
Sources
- Systolic Blood Pressure - an overview | ScienceDirect Topics - sciencedirect.com
- Physiology, Arterial Pressure Regulation - StatPearls - NCBI Bookshelf - ncbi.nlm.nih.gov
- Systolic Blood Pressure - an overview | ScienceDirect Topics - sciencedirect.com
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