Cardiac Muscle and Electrical Activity

This text discusses structure of cardiac muscle; conduction system of the heart; membrane potentials and ion movement in cardiac contractile cells; electrocardiogram; and cardiac muscle metabolism.

Topics

afterload
anastomosis
anterior cardiac veins
anterior interventricular artery
anterior interventricular sulcus
aortic valve
artificial pacemaker
atrial reflex
atrioventricular
AV node
atrioventricular bundle
atrioventricular bundle branches
atrioventricular septum
atrioventricular valves
atrium
auricle
autonomic tone
autorhythmicity
Bachmann’s bundle
Bainbridge reflex
baroreceptor reflex
bicuspid valve
bulbus cordis
bundle of His
cardiac cycle
cardiac notch
cardiac output
CO
cardiac plexus
cardiac reflexes
cardiac reserve
cardiac skeleton
cardiogenic area
cardiogenic cords
cardiomyocyte
chordae tendineae
circumflex artery
coronary arteries
coronary sinus
coronary sulcus
coronary veins
diastole
ejection fraction
electrocardiogram
ECG
end diastolic volume
EDV
end systolic volume
ESV
endocardial tubes
endocardium
endothelium
epicardial coronary arteries
epicardium
filling time
foramen ovale
fossa ovalis
Frank-Starling mechanism
great cardiac vein
heart block
heart bulge
heart rate
HR
heart sounds
hypertrophic cardiomyopathy
inferior vena cava
interatrial band
interatrial septum
intercalated disc
internodal pathways
interventricular septum
isovolumic contraction
isovolumic ventricular relaxation phase
left atrioventricular valve
marginal arteries
mesoderm
mesothelium
middle cardiac vein
mitral valve
moderator band
murmur
myocardial conducting cells
myocardial contractile cells
myocardium
negative inotropic factors
P wave
pacemaker
papillary muscle
pectinate muscles
pericardial cavity
pericardial sac
pericardium
positive inotropic factors
posterior cardiac vein
posterior interventricular artery
posterior interventricular sulcus
preload
prepotential depolarization
primitive atrium
primitive heart tube
primitive ventricle
pulmonary arteries
pulmonary capillaries
pulmonary circuit
pulmonary trunk
pulmonary valve
pulmonary veins
Purkinje fibers
QRS complex
right atrioventricular valve
semilunar valves
septum
septum primum
sinoatrial
SA node
sinus rhythm
sinus venosus
small cardiac vein
spontaneous depolarization
stroke volume
SV
sulcus
superior vena cava
systemic circuit
systole
T wave
target heart rate
trabeculae carneae
tricuspid valve
truncus arteriosus
valve
ventricle
ventricular ejection phase
atrioventricular bundle branch
atrioventricular node
AV
cardiac muscle structure
conduction system firing
defibrillator
ECG abnormality
ECG lead placement
ECG tracing
electrical activity
external automated defibrillator
heart conduction system
heart impulse conduction
internodal pathway
myocardial conducting cell
myocardial contractile cell
Purkinje fiber
sinoatrial node
SA
cardiac muscle