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Chap 15 Review


Name the two circulatory circuits of the cardiovascular system system and pulmonary
Right side of the heart recieves what type of blood? CO2
Left side of heart- what kind of blood? O2
CO2 blood from below the heart returns via the? Inferior vena cava
CO2 blood from above the heart returns via? Superior vena cava
CO2 blood from the myocardium returns via? coronary sinus.
Where will CO2 in the blood be given off and O2 picked up by the blood? lungs
_____ ______ brings O2 blood back to the heart pulmonary veins
____ _______ take CO2 away from the heart to the lungs pulmonary arterys
O2 blood is taken out of the heart and out to the body's tissue via the? Aorta
general size of heart? clench fist
Describe location of heart? 1. posterior sternum2. medial lungs3. lies upon diaphram
3 walls of the heart? 1. epicardium2. myocardium3. endocardium
inner wall of the heart? endocardium
outer wall of the heart? epicardium
middle muscle layer of the heart? myocardium
four heart valves? 1. Left A-V Valve2. Right A-V Valve3.Pulmonary valve4. Aortic Valve
Which two heart valves open when the heart is filling (at rest)? Left and Right A-V Valve
Which two heart valves are open when the heart is contracting (emptying)? Pulmonary and Aortic
Which two heart valves are closed when the heart is filling ( at rest)? Pulmonary and Aortic (2nd beat)
Which two heart valves are closed when the heart is contracting (emptying)? Left and Right A-V vale (1st beat)
the ____ _____ controls the blood flow from the left ventricle to aorta Aortic valve
____ ____ controls the blood flow from the left atrium to left ventricle left A-V valve
____ ____ controls the blood from the right atrium to right ventricle right A-V valve
____ ____ controls the blood flow from the right ventricle to the pulmonary artery pulmonary valve
6 corornary arteries 1. right corornary artery2. left corornary artery3. Posterior interventricular artery4. Marginal5. Circumflex6. Anterior interventricular artery
what is ment by systole? beating heart
diastole heart is at rest
Heart sounds Lubb- 1st heart soundDupp- 2nd heart sound
heart murmur? abnormal heart beat; valve timing is off. dont close at the same time.
____ ____ is the "pacemaker" of the heart SA node
____ ____ conducts the impulse to the ventricles of the heart AV node
electrocardium conducts electrical changes in heart
What occurs at each wave P and QRS- depolarizationT- repoloarization
two types of muscle fibers found in the myocardium 1. atrial syncytium2. ventricular syncytium
LA, RA, LV, RV, Pul art, Pul veins, Inf VC, Sup VC, Aorta, left AV, Right AV, Aoric valve, Pulm Valve
Created by: Mollie28