The stage of the heart cycle in which the heart muscle is relaxed<span>, allowing the chambers to fill with blood. ... The </span>stage of the heart cycle in which the heart muscle<span> contracts and the chambers pump blood. Systolic Pressure. Blood pressure in the arteries during contraction of the ventricles</span>
C the pupil its actually a muscle which is pretty interesting i think
<span>-be positive (the mind is important)
- Be put in positions of trust
-to concentrate
-well <span>breathe</span></span>
