CH.14 Cardiovascular System

an abnormally slow heart rate is termed_________

• tachycardia

• arrythmia

• systole

• bradycardia

The part of the heart capable of generating the largest force is the

• right atrium

• right ventricle

• left atrium

• left ventricle

A heart sound resulting from normal ventricular filling could be called a(n) __________ murmur

• organic

• functional

• diastolic

• systolic

The two upper chambers of the heart are separated by the __________

• interatrial septum

• interventricular septum

• extrasystole

• valve

Atrial systole occurs when ________

• the atria are relaxed

• the ventricles are contracting

• blood is ejected into the aorta

• the atria are contracting

Mr. L suffered a myocardial infarction that incapacitated his sinoatrial node. His atrioventricular node is now acting as the pacemaker. How will his heartbeat differ from normal?

• faster than normal

• slower than normal

• remain the same

• have arrythmia

The ventricles contract during the cardiac phase called

• diastole

• systole

• infarct

• sinus contraction

The semilunar valves are the

• aortic and pulmonary

• pulmonary and bicuspid

• mitral and bicuspid

• aortic and mitral

A heart murmur would most simply be detected by an instrument called a(n) _______________

• stent

• EKG

• stethoscope

• audiocardio

Threads that attach the valve flaps to the ventricle walls are called __________.

• chordae tendinae

• stenoses

• stents

• ductus arteriosus