explain the difference between the thickness of the myocardium in the right and left ventricles.

In 500 to 750 words, identify and describe the structure and function of the heart, how the cardiac cycle works, and what is cardiac output.

Starting outside the parietal pericardium, list the different layers you would cross to get into the left ventricle.

A heart murmur would be detected in the pathological situation in which blood was flowing from the __________ to the __________ through an incompetant __________.   A right atrium; right ventricle; tricuspid valve   B right atrium; left atrium; tricuspid valve   C left ventricle; left atrium; mitral valve   D left atrium; left ventricle; mitral valve   E ALL OF THE ABOVE

Which heart sound is longer in duration and louder, the first or the second heart sound. Briefly explain.

Assume a person has had a widowmaker heart attack. Sketch out (i.e. draw) a diagram of the heart and coronary blood vessels and please explain detailed what is happening during this event.

You are an erythrocyte in the vena cava. Starting there, trace your route through the heart and back into the systemic circulation by naming, in order, all of the major valves, chambers, and organs you will pass through.

A type of aneurysm in which blood leaks between layers of the vessel wall, tearing them apart, is called?

Roberto’s doctor orders several tests of his heart function, including “ejection fraction.” Briefly explain what an ejection fraction measures. (Include what a normal measurement would be.)

Use a flowchart to illustrate blood flow through systemic and pulmonary circulation, starting from the aorta and making one complete cycle. Include the following in your answer: atrioventricular valves, semilunar valves, heart chambers, all blood vessels. Indicate when blood is oxygen rich or oxygen poor at each stage of your flowchart.