Ventricular repolarization
T WAVE
A faster depolarizing pacemaker
SA NODE
Ventricular depolarization
QRS COMPLEX
Atrial depolarization
P WAVE
A slower depolarizing pacemaker
AV NODE
Which valve separates the following areas of the heart ?
Left ventricle and aorta
AORTIC SEMILUNAR VALVE
Which valve separates the following areas of the heart ?
Right atrium and right ventricle
TRICUSPID VALVE
Which valve separates the following areas of the heart ?
Left atrium and left ventricle
MITRAL (BICUSPID) VALVE
Which valve separates the following areas of the heart ?
Right ventricle and pulmonary artery
PULMONARY SEMILUNAR VALVE
The pericardial cavity:
CONTAINS A LUBRICATING FLUID CALLED SEROUS FLUID
Select the correct statement about the function of myocardial cells....
THE ALL-OR-NONE LAW AS APPLIED TO CARDIAC MUSCLE MEANS THAT THE ENTIRE HEART CONTRACTS AS A UNIT OR IT DOES NOT CONTRACT AT ALL
The deflection waves in an ECG tracing include:
THE T WAVE, WHICH INDICATES VENTRICULAR REPOLARIZATION
Stenosis of the mitral valve may initially cause a pressure increase in the:
PULMONARY CIRCULATION
Define systole......
Define diastole.....
Which heart chambers are usually referenced when these terms are used ?
......PERIODS OF CONTRACTION
......PERIODS OF RELAXATION
THE VENTRICLE CHAMBERS ARE USUALLY REFERENCED