Which layer is both a part of the pericardium and a part of the heart wall?

What are the three primary sulci of the heart? What structures are within these superficial grooves of the heart?

Which chamber has higher pressure during the following phases of the cardiac cycle? a) ventricular ejection, b) isovolumic ventricular relaxation, c) atrial and ventricular diastole, d) isovolumic ventricular contraction. Why?

which has larger lumen (opening for blood flow):an artery, or a vein?

Normal heart sounds are caused by which of the following events? A) friction of blood against the chamber walls B) closure of the heart valves D) blood entering and leaving the heart chambers E) excitation of the SA node

The closure of the mitral valve (bicuspid valve) A) is represented by the P wave on the EKG C) contributes to the first heart sound D) occurs when the tricuspid valve is open

What will be a flow chart of the function of the heart's blood flow, where it goes and comes back, and which is oxygenated and deoxygenated blood?

Select the correct statement regarding the AV node B) it produces the P wave on the EKG C) it is also known as the heart's pacemaker D)it contains autorhythmic cells

What areas of the heart are deprived of blood when there is a blockage in the posterior interventricular artery?

What tissue in the heart is responsible for setting the heart rate and stimulating the cardiac muscle to contract?