Heart
Dr. Muna Zuhair
Left coronary a.
Branches
• Anterior interventricular (descending) branch.• Circumflex a.
Branches
Anterior interventricular (descending) branch.
Left diagonal a.
Left conus a.
Circumflex a.
Left marginal a.
Anterior ventricular and posterior ventricular branches.
Atrial branches.
Variations in the coronary arteries
Right dominance.
Left dominance.
Coronary a. anastomoses
They are not large enough to provide adequate blood supply to cardiac m. if one of large branches blocked by disease.
Summary of overall arterial supply to the heart in most individuals
Right coronary a.
Left coronary a.
Arterial supply to the conducting system
Venous drainage of the heart
Great cardiac v.
Small and middle cardiac veins.
Anterior cardiac v.
Nerve supply of the heart
Cardiac plexuses.
Action of the heart
Cardiac cycle.
Surface anatomy of the heart
Apex.
Four borders.
Apex.
Superior border.
Right border.
Left border.
Inferior border.
Surface anatomy of the heart valves
Tricuspid valve.
Mitral valve.
Pulmonary valve.
Aortic valve.
Auscultation of the heart valves
Auscultation of the heart valves
Tricuspid valve.
Mitral valve.
Pulmonary valve.
Aortic valve.
