burnsmh
Forum Crew Member
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I seem to be having trouble on getting down how the heart works and how it relates to blood pressure.
Tell me what I have right and wrong please, any hints or help would be nice. Thanks.
Blood enters the right atrium, leaves the right ventricle for the lungs for oxidation.
Blood leaves the lungs into the left atrium then out the left ventricle for the tissues to give them oxygen.
Systole (Pumping) = Top number - Blood leaving the left ventricle to the tissue.
Diastole (At rest) = Bottom number - Blood entering the heart for oxygen via the right ventricle.
Where I get really confused is what is contracting and what is relaxing during each of the phases...
I have been taking practice test on medictests.com and I keep missing these questions and I keep re-reading the section...But I must not be understanding something.
Tell me what I have right and wrong please, any hints or help would be nice. Thanks.
Blood enters the right atrium, leaves the right ventricle for the lungs for oxidation.
Blood leaves the lungs into the left atrium then out the left ventricle for the tissues to give them oxygen.
Systole (Pumping) = Top number - Blood leaving the left ventricle to the tissue.
Diastole (At rest) = Bottom number - Blood entering the heart for oxygen via the right ventricle.
Where I get really confused is what is contracting and what is relaxing during each of the phases...
I have been taking practice test on medictests.com and I keep missing these questions and I keep re-reading the section...But I must not be understanding something.