The heart

Right atrium

Left atrium

Right ventricle

Left ventricle

aortic arch

Auricle

Tricuspid valve

Bicuspid valve

Pulmonary semilunar valve

Aortic semilunar valve

Papillary muscles

interventricular septum

Chordae tendineae

Pulmonary trunk - carries deoxygenated blood

Pulmonary artery - carries deoxygenated blood from heart to lungs

Pulmonary vein - carries oxygenated blood from lungs to heart

Ascending Aorta

Superior vena cava - brings blood to the right atrium

Inferior vena ava

great cardiac vein

middle cardiac vein

small cardiac vein

coronary sinus

right coronary artery

marginal artery

left coronary artery

circumflex artery

anterior interventricular artery 

posterior interventricular artery 

Top of heart

base

Bottom of heart

apex

coronary sulcus

interventricular sulcus

Layers of the heart

1. Pericardium

2. Myocardium

3. Endocardium

Electrocardiograph

• Graph: Electrocardiogram (result): measurement of the atrial depolarization, ventricular depolarization and the ventricular repolarization 

• Instrument: electrocardiograph 

  • P Wave: when the action potential reaches, it leads to atrial depolarization 

  • QRS complex: Ventricular depolarization

  • T wave: ventricular repolarization

Electrocardiogram