Exam 3 - Hypertension & Heart Failure Flashcards
(237 cards)
Through which veins is deoxygenated blood from the body returned to the heart ?
The superior and inferior vena cava
Where does deoxygenated blood get dumped after entering the superior and inferior vena cava’s ?
the right atrium
Once deoxygenated is dumped into the right atrium, where does it flow next ?
The Right ventricle
From the Right ventricle, where does the deoxygenated blood get pumped to next?
Into the pulmonary artery and out to the lungs to circulate and become oxygenated.
Once the deoxygenated blood in the lungs circulates and becomes oxygenated, that freshly oxygenated blood then enters from both lungs into where ?
Enters through the pulmonary veins into the Left atrium
From the left atrium, the newly oxygenated blood then flows to where next ?
Down into the left ventricle
From the left ventricle, the oxygenated blood gets pumped to where next ?
Gets pumped up and out through the aorta to the body
Where does oxygen exchange occur ?
Lungs !
What cardiac valve is located between the R atrium and R ventricle ?
Tricuspid valve
What cardiac valve is the last valve before blood enters into circulation ?
Aortic (semilunar) valve
What cardiac valve is located between the L atrium and L ventricle ?
Mitral valve
What are two major coronary arteries of the heart ?
- Right coronary artery
- Left coronary artery
Both the Right coronary artery and the left coronary artery branch off into what ?
Smaller descending arteries
What is the medical term for the Heart muscle ?
Myocardium
The myocardium has its own what ?
Blood supply/circulation
What supplies blood/circulation to the heart itself ?
The coronary arteries and veins
Blockage of what coronary artery can result in serious defects in cardiac conduction, because it supplies the bundle of hiss, AV node, etc.
R coronary artery
What is Systole defined as ?
Contraction of the myocardium
What is Diastole defined as ?
Relaxation of the myocardium
_______________ is the amount of blood pumped by each ventricle in 1 minute ?
Cardiac output
What is the equation for determining the Cardiac Output (CO) ?
CO = SV x HR
- Cardiac output = stroke volume x Heart rate *
What is the Cardiac index ?
CO divided by body surface area
What is a normal cardiac output for an Adult at rest ?
4-8 Liters per minute
- 1 IV bag = 1L *
_____________ is the volume of blood in the ventricles at the end of diastole ?
( the amount of blood in ventricles before the next contraction)
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