left coronary arterygreat cardiac veinright coronary artery circumflex branchcoronary sinusmiddle cardiac vein5% of systemic circulation is blood flowing through the coronary circulation. Thebranches into the anterior interventricularbranch (which supplies both ventricles and the anterior 2/3 of the interventricular septum), and the,which supplies the leftatrium and posterior wall of the left ventricle. Thesupplies the right atrium and sinoatrial node.Blood is returned to the right atrium through a series of cardiac veins. Thecollects blood from the anterior portion of the heartand empties into the coronary sinus. Thecollects blood from the posterior portion of the heart and drains into the

Introduction: The circulatory system comprises the central blood-pumping organ, the heart, and the…

Answered: left coronary artery great cardiac vein…

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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Similar questions

When during the cardiac cycle do ventricles contain their maximal amount of blood? At the end of ventricular systole. At the end of ventricular diastole. At the beginning of ventricular diastole. Halfway through ventricular systole.
The second heart sound is caused by: a. closure of the aortic and pulmoary valvesb. vibrations in the ventricular wall during systolec. active ventricular fillingd. closure of the mitral and tricuspid valvese. retrograde flow in the vena cava
During what stage or stages is blood being pumped from the atria into the ventricles
The great cardiac vein is the main tributary of the coronary sinus. With which artery does the great cardiac vein travel? right marginal branch posterior interventricular artery right coronary artery anterior interventricular artery left marginal artery
The semilunar valves prevent blood from moving: Group of answer choices from the atria back into the veins. from the ventricles back into the atria. from the arteries back into the ventricles. moving backward in the capillaries. moving backward in the arteries.
Which of the following structures of the heart is responsible for pumping the blood to the lungs? left atrium left ventricle right atrium right ventricle sinoatrial node
isovolumetric contraction isovolumetric relaxation ventricular filling ventricular ejection closed rises S1 drops depolarize S2 The first phase of the cardiac cycle is . This is when a lot of blood is in the atria, which causes atrial pressure to be higher than the ventricles. The atrioventricular valves open, and blood moves from the atria to the ventricles. At the end of this phase, the atria contract to maintain pressure and blood flow into the ventricles. As blood leaves the atria, the pressure in the atria As blood enters the ventricles, the pressure in the ventricles Towards the end of this phase, the pressure in the ventricles will exceed the pressure in the atria. At this point, the heart enters the second phase of the cardiac cycle: At this point, the AV valves shut, and we hear . The atria repolarize and the ventricles (due to the QRS complex of the ECG), causing ventricular contraction. Although contracting, it is not yet moving blood into the arteries. All 4 heart valves…
explanation of circulation of blood in humans it has to begin with the right atrium of the heart. It also includes these: include all the names of the chambers of the heart include the names and function of the valves in the heart include the names of the all the major vessels involved state where blood is deoxygenated (oxygen-poor) or oxygenated (oxygen-rich)
A patient has a condition in which the SA node is no longer functioning. The atrioventricular (AV) node is now setting the pace and rhythm for the heart. What difference would you expect to see in the ECG of this patient? Group of answer choices P wave would be much larger than normal there would continue to be a normal sinus rhythm QRS complex would be absent the rhythm would be slower
In atrial fibrillation, the atria do not contract correctly, and not all blood exits this chamber. The blood pools in the atria, and this can promote blood clot formation. If a blood clot forms in the left atrium, it can get pumped from the left ventricle, get caught in a capillary bed and cause a(n): pulmonary embolus 2) inferior vena cava filter 3) deep vein thrombosis 4) cerebral vascular accident (CVA)
The largest coronary blood vessels are located in what structure? Auricle Sulcus Myocardium Endocardium
which of the following is the first to occur during the period of ventricular systole? QRS complex, sharp rise and ventricular pressure, or blood leaving the ventricle.

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