CV System Test Review

Freshly oxygenated blood is first received by the

• right ventricle

• left ventricle

• right atrium

• left atrium

Which of the following depolarizes next after the AV node?

• Atrial myocardium

• Ventricular myocardium

• Bundle branches

• AV bundle

When the myocardium is contracting

• Systole

• Diastole

During atrial systole (you will need to think about this one) - there are 2 answers.

• the atrial pressure exceeds ventricular pressure

• 70 percent of ventricular filling occurs

• The AV valves are open

• valves prevent backflow into the great veins

Atrial repolarization (relaxation/return to rest) coincides in time (on the ECG) with the

• P wave

• T wave

• QRS wave

• P-Q interval

The apex of the heart is its_____surface.

• superior

• posterior

• anterior

• inferior

In comparing a parallel artery and vein, you would find that

• The artery wall is thicker

• the artery diameter is greater

• the artery lumen is smaller

• the artery endothelium is thicker

A stroke that occludes a posterior cerebral artery will most likely affect (google it) Hint: Look carefully for this answer.

• hearing

• vision

• smell

• higher thought processes.

Which heart chamber forms most of the heart's inferior surface?

• Right atrium

• Right ventricle

• Left atrium

• Left ventricle

How many cusps does the right atrioventricular valve have?

• two

• three

• four