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Question: s happening to the ventricular blood volume closed lar blood...

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s happening to the ventricular blood volume closed? lar blood volume when all the heart valves are 11) When the AV valves close, the is heard wheart sound is heard, while the the semilunar valves close. 12) Match the following to their definitions or functions: a. AV valves (tricuspid and bicuspid) b. semilunar valves (aortic and pulmonary) c. left atrium d. left ventricle e. right atrium f. right ventricle g. the aorta prevent backflow of blood from the ventricles to the atria prevents backflow pumps deoxygenated blood into the pulmonary arteny pumps O2 rich blood into the aorta receives deoxygenated blood from the vena cava receives oxygen rich blood from the pulmonary veins of blood from the arteries into the ventricles 13) The pacemaker of the heart is the node. 14) what electrical event makes sure that the ventricles contract after the atria have contracted? 15) Which component of the conduction system provides the only electrical connection between the atrial and the ventricles? What is responsible for insulating the walls between the atria and the ventricles? 16) The specialized cardiac muscle cells known as pacemaker and also form the conduction system of the heart act as a and contractile myocytes have the same action potential profile? a resting membrane potential? Why is this so 7) Do the autorythmic membrane Which cells do not have important? What would happen if they did? uence of cardiac excitation, starting with the SA node and excitation sta 18) Wirite out the proper sequence 18) Write out the fibers ending with the purkinjie fibers:
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