PSIO202 1.1-1.2

All of the following are true EXCEPT:

• The systemic circulation carries oxygenated blood to the body's cells/tissues/organs.

• The pulmonary circulation carries deoxygenated blood to the lungs where it is reloaded with oxygen and then carried back to the heart.

• The systemic circulation includes deoxygenated blood moving from the cells/tissues/organs back to the heart.

• At rest, the kidneys, GI tract, and skeletal muscle are not major recipients of blood.

During pulmonary circulation, blood from the right ventricle is ejected out of the ____ and goes to the lungs.

• aorta

• pulmonary trunk

• coronary sinus

• foramen ovale

Cardiac output is:

• the amount of blood pumped by a ventricle per unit of time (L/min)

• the same between the right and left ventricles

• is about 5L/min at rest

• all of the above

The heart has 4 valves and 4 chambers.

• True

• False

Why does the left ventricle have a thicker wall than the right ventricle?

• It's just the anatomy of it--there's no specific reason

• The left ventricle has more work to do (pump blood to further distances)

• The right ventricle only pumps blood to the lungs, so it doesn't need as much muscle

• I dont know... Ask Dr. Banek

Heart valves make sure that blood only flows through the heart in one direction.

• true

• false

Where are atrioventricular valves found?

• between only the right atrium and right ventricle

• between each set of atria and ventricles

• between the right ventricle and the pulmonary trunk

• between the left ventricle and the aorta

Where are the semilunar valves located?

• between each set of atria and ventricles

• one is between the left ventricle and the pulmonary trunk; one is between the right ventricle and the aorta

• one is between the left ventricle and the aorta; one is between the right ventricle and the pulmonary trunk

• all of the above

The left AV valve is also called the:

• all of the above

• mitral valve

• tricuspid valve

• bicuspid valve

Chordae tendinae prevent prolapse of valves into atria during ventricular contraction.

• true

• false