AND ANSWERS ALL CORRECT
Failure of proper conduction of impulses from the SA node through the AV node to the
atrioventricular bundle (bundle of His). - Answer-bradycardia and heart
block (atrioventricular
block)
Implantation of an artificial ___________ overcomes arrhythmias and
keeps the heart beating at the proper rate. - Answer-cardiac pacemaker
Rapid but regular contractions, usually of the atria. - Answer-flutter
Very rapid, random, inefficient, and irregular contractions of the heart (350 beats or
more per minute). - Answer-fibrillation
is the most common type of cardiac arrhythmia, - Answer-Atrial fibrillation (AF)
uncomfortable sensations in the chest from missed heartbeats - Answer-palpitations
is a small electrical device that is implanted inside the chest (near the collarbone) to
sense arrhythmias and
terminate them with an electric shock - Answer-implantable cardioverter-defibrillator
(ICD)
may be found in workplaces, airports, and other public places and are used in an
emergency situation to reverse ventricular fibrillation - Answer-Automatic external
defibrillators (AEDs)
Abnormalities in the heart at birth. - Answer-congenital heart disease
Narrowing (coarctation) of the aorta - Answer-coarctation of the aorta
(CoA)
Passageway (ductus arteriosus) between the aorta and the pulmonary
artery remains open (patent) after birth. - Answer-patent ductus
arteriosus (PDA)
Small holes in the wall between the atria (atrial septal defects) or the
ventricles (ventricular septal defects). - Answer-septal defects
, septal defects can require __________ to close the hole between heart chambers if the
defects do not close spontaneously. - Answer-open heart surgery
Congenital malformation involving four (tetra-) distinct heart defects. - Answer-tetralogy
of Fallot
(fă-LŌ)
The four defects of tetralogy of Fallot are: - Answer-•Pulmonary artery stenosis.
•Ventricular septal defect.
•Shift of the aorta to the right.
•Hypertrophy of the right ventricle.
Pulmonary artery is narrow or obstructed. - Answer-Pulmonary artery stenosis
Large hole between two ventricles lets venous blood
pass from the right to the left ventricle and out to the aorta without
oxygenation. - Answer-Ventricular septal defect
Instrument to measure blood pressure. - Answer-sphygmomanometer
Aorta overrides the interventricular septum.
Oxygen-poor blood passes from the right ventricle to the aorta - Answer-Shift of the
aorta to the right.
An infant with hypertrophy of the right ventricle is described as a "blue baby" because of
the extreme degree - Answer-cyanosis
Heart is unable to pump its required amount of blood. - Answer-congestive heart failure
(CHF)
Disease of the arteries surrounding the heart. - Answer-coronary artery disease
(CAD)
CAD usually is the result of __________. This is the deposition of fatty
compounds on the inner lining of the coronary arteries - Answer-atherosclerosis
(blocking of the coronary artery by a clot) - Answer-thrombotic occlusion
decreased blood flow - Answer-ischemia
death - Answer-necrosis
Blood flow is
decreased or stopped entirely, leading to death of a part of the myocardium. This
sequence of events constitutes a __________, or