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27 Cards in this Set

  • Front
  • Back
arrhythmia
being without rhythm; (sinus arrhythmia) is a regular variation in H.R caused by changes in the rate and depth of breathing. normal phenomenon
atherosclerosis
thickening and hardening of the arteries with plague
atrium
left and right receiving chambers
bradycardia
slower rate than usual; less than 60 beats per minute.
coronary
pertaining to a crown like the veins and arteries of the heart
coronary thrombosis
thrombus formation results in life threatening condition
diastole
resting phase
echocardiograph
uses ultrasound to record pictures of heart in action
electrocardiography
records electrical activity as waves
endocardium
thin inner layer of epithelium
epicardium
thin outer layer of serous membrane (also called visceral pericardium)
fibrillication
an episode of rapid, wild, and uncoordinated heart muscle contractions
infarct
the tissue damaged in a heart attack
ischemia
narrowing of blood vessels leads to ischemia, a lack of blood supply to tissues
murmur
abnormal
myocardium
the heart muscle
pacemaker
SA node; because it sets the rate of heart contractions
pericardium
sac that encloses the heart
plaque
progressive deposit of fatty material
septum
the hearts chambers are completely separated from eachother by partitions
inter atrial sptum
separates the two atria
inter ventricular septum
separates the two ventricles.
stenonsis
narrowing of a duct or canal
systole
contraction phase
tachycardia
heart rate more that 100 beats per minute
valve
structure that prevents fluid from flowing backward, as in the heart, veins, and lymphatic vessels
ventricle
cavity or chamber; on of the two lower chambers of the heart;