When the cardiac muscles rest and contract, they are in diastole and systole. A person’s blood pressure is based on how well their diastolic and systolic pressures balance. The heart is a pump that provides oxygen-rich blood to all bodily tissues and organs. The heart’s muscles contract and relax to produce the heartbeat. The relaxation […]
![Diastole: The Relaxation Phase of the Cardiac Cycle](https://samuraipharmacy.com/wp-content/uploads/2023/11/162.png)