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SA node (sinoatrial node)
Name the structure.
AV node (atrioventricular node)
Name the structure.
AV bundle (bundle of His)
Name the structure.
left bundle branch
Name the structure.
right bundle branch
Name the structure.
Purkinje fibers
Name the structure.
electrocardiogram (ECG)
Name the recording.
P wave
Name the structure.
P wave
ECG part showing atrial depolarization
QRS complex
Name the structure
QRS complex
ECG part showing ventricular depolarization
atrial contraction
represented by P wave
ventricular contraction
represented by QRS complex
T wave
Name the structure.
T wave
ECG part showing ventricular repolarization
ventricular relaxation
Represented by T wave
P wave
Name the structure.
QRS complex
Name the structure.
T wave
Name the structure.
systole
term for heart muscle contraction & blood ejection
diastole
term for heart muscle relaxation & ventricle filling
SA node (sinoatrial node)
pacemaker of the heart
fibrous pericardium
Name this outermost layer
parietal pericardium
Name this layer.
epicardium
Name this layer on the heart.
myocardium
Name this layer.
endocardium
Name this innermost layer.
pectinate muscle
Name these ridges.
papillary muscle
Name the cone shaped structure.
papillary muscle
Name the cone shaped structure.
chordae tendineae
Name the structure.
moderator band
Name the structure.
ligamentum arteriosum
Name the structure.
right atrium
Name the space.
right atrium
Name the space.
right auricle
Name this outer structure.
right auricle
Name this outer structure.
superior vena cava
Name the blue vessel.
superior vena cava
Name the blue vessel.
inferior vena cava
Name the blue vessel.
inferior vena cava
Name the blue vessel.
coronary sinus
Name the blue vessel.
coronary sinus
Opening to what vessel?
interatrial septum
Name the structure.
tricuspid valve
Name the structure.
tricuspid valve
Name the structure.
right ventricle
Name the space.
right ventricle
Name the space.
interventricular septum
Name the structure.
interventricular septum
Name the structure.
pulmonary valve
Name the structure.
pulmonary valve
Name the structure.
pulmonary trunk
Name the blue vessel.
pulmonary trunk
Name the blue vessel.
pulmonary artery
Name the blue vessel.
pulmonary artery
Name the blue vessel.
left atrium
Name the space.
left atrium
Name the space.
pulmonary veins
Name the red vessels.
left auricle
Name this outer structure.
mitral (bicuspid) valve
Name the structure.
left ventricle
Name the space.
left ventricle
Name the space.
aortic valve
Name the structure.
aorta
Name the red vessel.
aorta
Name the red vessel.
systemic circulation
Name this circuit.
pulmonary circulation
Name this circuit.
left coronary artery
Name the red vessel.
circumflex artery
Name the red vessel.
circumflex artery
Name the red vessel.
anterior interventricular artery (LAD)
Name the red vessel.
anterior interventricular artery (LAD)
Name the red vessel.
right coronary artery
Name the red vessel.
right coronary artery
Name the red vessel.
marginal artery
Name the red vessel.
marginal artery
Name the red vessel.
posterior interventricular artery
Name the red vessel.
posterior interventricular artery
Name the red vessel.
great cardiac vein
Name the blue vessel.
great cardiac vein
Name the blue vessel.
intercalated disk
Name the structure at the end of the arrow.
aortic valve
Name the structure.
middle cardiac vein
Name the blue vessel.
middle cardiac vein
Name the blue vessel.
myocardium
Name the layer.
fossa ovalis
Name the structure.
pericardial cavity
name this space
pericardial cavity
Name this space on the heart.
chordae tendineae
Name the white strings at the end of the arrow.
fossa ovalis
Name this structure in an adult heart.
pericardial cavity
Name this space.