Vocab (Exam 1)

Question 1

Any pacemaker other than the sinus node of the heart; abnormal pacemaker

Answer 1

ectopic focus

Question 2

inflammation of the endocardium. affects the valves more severely than other areas of the endocardium. may lead to scarring, causing stenosed or incompetent vavles

Answer 2

endocarditis

Question 3

inflammation of the pericardium.

Answer 3

pericarditis

Question 4

damaged cardiac muscle tissue resulting from lack of blood flow to the myocardium

Answer 4

myocardial infarction (heart attack)

Question 5

narrowed opening through one or more of the heart valves

Answer 5

stenosed valves

Question 6

formation of a blood clot in a coronary artery

Answer 6

coronary thrombosis

Question 7

progressive weakening of the heart muscle, reducing the heart’s pumping action.

Answer 7

heart failure

Question 8

heart rate in excess of 100 bpm

Answer 8

tachycardia

Question 9

heart rate less than 60 bpm

Answer 9

bradycardia

Question 10

prolonged QRS complex; exaggerated voltage because only one ventricle may depolarize

Answer 10

premature ventricular contraction (PVC)

Question 11

frequently causes fibrilation

Answer 11

ventricular tachycardia

Question 12

reduce the ate at which calcium diffuses into cardiac and smooth muscle cells

Answer 12

calcium channel blockers