Bio 169 (Cardiology and immunity); Questions & Answers 100% Correct
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Bio 169
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Bio 169
Bio 169 (Cardiology and immunity); Questions
& Answers 100% Correct
papillary muscles Correct answer-extend from the endocardium of both ventricles and
are attached to the cusps of the right and left valves
right bundle branch Correct answer-is a bifurcation of conduction myofibrils at the
i...
Bio 169 (Cardiology and immunity); Questions
& Answers 100% Correct
papillary muscles Correct answer-extend from the endocardium of both ventricles and
are attached to the cusps of the right and left valves
right bundle branch Correct answer-is a bifurcation of conduction myofibrils at the
interventricular septum that distributes the impulses from the AV bundle to the right ventricle
Atrial Tachycardia Correct answer-arrhythmia that usually has a rate between 150-250
bpm and consist of rapid heart rates that result from a regular succession of ectopic beats in the
atria or from a reentry pathway within the AV node
An electrocardiogram is a surface measurement of the electrical potential generated by
electrical activity in Correct answer-purkinge fibers
the heart comprises_______% of the body weight and uses ______% of the body's oxygen
Correct answer-.5%; 5%
the ________ returns 20% of the coronary circuit venous return to the __________
Correct answer-small coronary veins; right ventricle
the ________ valve prevents backflow from the RV into the RA during RV _______
Correct answer-tricuspid; systole
, Bio 169 (Cardiology and immunity); Questions
& Answers 100% Correct
specialized muscle structures in the ventricles called ____________ contribute to the structure
of the chambers Correct answer-trabeculae carnae
the epicardium and the parietal pericardium secrete ___________ fluid into the ___________
sac Correct answer-serous; pericardial
the LAV along with the RAV form the _________ heart sound known as __________
Correct answer-first; lubb
NSR is the abbreviation for Correct answer-normal sinus rhythm
composed of auto-rhythmic cells located at the junction of the four chambers of the heart, this
acts as the secondary pacemaker_________ Correct answer-atrio-ventricular node
the ______ wave is the first positive deflection that represents atrial _________ as it spreads
from the _____ node and across both atria Correct answer-P; depolarization; SA
known as the flat line or asystole, this point denotes neither a negative nor positive deflection
Correct answer-isoelectric trace line
the period when all heart muscle of the chambers is at rest is known as the Correct
answer-quiescent
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