Heart Dissection

Base Apex

Auricles Rt.Lt. Ear-shaped extensions of the atria.

The auricles wrap around to the anterior side of the heart. Anterior

The Coronary Vessels Coronary arteries and veins supply blood to the heart itself. This is called coronary circulation

Anterior View

Coronary Arteries and Veins Coronary Arteries and Veins Oxygenated blood goes into the heart wall through coronary arteries Deoxygenated blood returns from the heart wall through coronary veins

Locating the Major Vessels

Anterior View--Aortic Arch Aorta Arising from the left ventricle of the heart is the largest artery of the body, the aorta. Rt.Lt.

Anterior View--Aortic Arch brachiocephalic artery Rt.Lt. Lt. common carotid Supply blood to the upper chest, neck, arms, and head Aorta

Aorta: Posterior View Aorta Lt. Rt.

Posterior View--Vena Cavae Superior Vena Cava Inferior Vena Cava Lt.Rt.

Posterior View--Pulmonary Artery Left Pulmonary Artery Lt.Rt.

Posterior View--Pulmonary Veins Pulmonary veins are inferior to pulmonary arteries. Lt.Rt.

Right Pulmonary Vein Left Pulmonary Vein Lt.Rt.

Open heart Posterior half Anterior half Rt.Lt.

Septum Lt. Atrium Rt. Atrium aorta Rt. Lt.

Rt. Ventricle Lt. Ventricle Septum aorta

Septum aorta Width of right ventricular wall Width of left ventricular wall Lt. Rt.

Chordae tendineae Tricuspid valve Cusp of valve Papillary muscles Septum Lt. Rt.

Mitral valve Septum Lt. Rt.

cusp Lt.Rt.

Chordae tendinae Lt. Rt.

Check point You should be able to trace pathway of blood (begin with Right Atrium and end with the vena cava)