| A | B |
|---|
| Blood Pressure | Pressure exerted by the blood upon the walls of the blood vessels |
| Diastole | The stage of the heart cycle in which the heart muscle is relaxed |
| Diastolic Pressure | Blood pressure that remains between heart contractions. |
| EKG | measurement of heart electrical activit |
| Sinoatrial node | A small mass of tissue that is made up of Purkinje fibers |
| Systole | The stage of the heart cycle in which the heart muscle contracts and the chambers pump blood. |
| Systolic pressure | Blood pressure in the arteries during contraction of the ventricles. |
