We need oxygen in our blood to full our bodies cells. If we weren't getting enough oxygen into our bloodstream cells could die
It usually means you have gingivitis (gum disease)
There are two phases of the cardiac cycle. These phases are diastole and systole. The dicrotic notch is found during systole, specifically ventricular systole.
Systole is the time when <span>left and right ventricles contract and eject blood into the aorta and pulmonary artery.
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Diastole is the time when the ventricles are not contracting or are in a relax mode.
A printable Snellen Chart, which you can download online.
Something to cover one eye at a time, like an eye patch or a paper cup.
Scissors.
Tape or tack to hang the chart on your wall.
Pencil or pen to record your results.
