The Heart Dissection

Which chambers receive the blood as it comes back to the heart?

• ventricles

• atria

• aorta

• vena cava

How do the atrial walls compare to the ventricular walls?

• atrial walls are thicker than ventricular walls

• atrial walls are thinner than ventriclular walls

• atrial walls are red, ventriclular walls are blue

• atrial walls are bigger than ventriclular walls

What is the purpose of the heart valves?

• to allow blood to flow in only one direction through the heart

• to allow blood to flow back and forth between chambers

• to create blood pressure

• to make the lub dup sound

Which artery is the largest and why?

• The vena cava is the largest artery because it carries all the body's blood back to the heart

• The Pulmonary artery is the largest because it carries all the blood to the lungs

• The Aorta is the largest because it carries all the blood out into the body and has to withstand the most force

Blood from the LEFT atrium flows into the....

• Right atrium

• Aorta

• Left ventricle

• Superior Vena Cava

Blood from the RIGHT ventricle flows to the ...

• pulmonary artery and then to the lungs

• to the aorta and out to the body

• to the RIGHT atrium

Which side of the heart contains DE-OXYGENATED blood?

• Left Side

• Right Side

• Superior

• Inferior

Why are the artery walls thicker than vein walls?

• arteries hold more blood than veins

• arteries are more likely to get disease than veins

• arteries are made of different material than veins

• arteries have to withstand a higher blood pressure than veins

The thick muscular wall that separates the left and right ventricles is...

• the aorta

• the interventricular septum

• the chordae tendinae

• the semilunar valves

Which valve prevents blood from flowing back into the left ventricle?

• bicuspid valve

• tricuspid valve

• pulmonary semilunar valve

• aortic semilunar valve