(gulp)But sheep have nice hearts…

Supplies you will use:

Dissection Tray & Pig Heart

Don’t forget your

gloves!

Base

Apex

Let’s Get Started!!!

Anterior View

Anterior View--Aortic Arch

Aorta

Arising from the left ventricle of the heart is the largest artery of the body, the aorta.

Rt.

Lf.

Anterior View--Aortic Arch

Brachiocephalic trunk (innominate artery)

Rt.

Lf.

Lf. common carotid

Aorta: Posterior View

Aorta

Lf. Rt.

Posterior View--Vena Cavae

Superior Vena Cava

Inferior Vena Cava

Lf. Rt.

Posterior View--Pulmonary Artery

Lf. Pulmonary artery

Lf. Rt.

Posterior View--Pulmonary Veins

Pulmonary veins are inferior to pulmonary arteries.

Rt.

Lf.

Rt.Pul. veinLf.

Pul. vein

Dissect heart on the coronal planeThis separates the anterior and posterior sections

Open heart on

dissection tray.

Posterior half

Anterior half

Rt.

Lf.

Sept

um

Lf. AtriumRt. Atrium

aort a

Rt.

Lf.

Rt. Ventricle

Lf. Ventricle

Sept

umao

rt a

Width of right

ventricular wall

Width of left

ventricular wall

Chordae tendina

e

Tricuspid valve

Cusp of valve

Papillary

muscles

Sept

um

Mitral valve

Sept

um

Sept

um

cusp

Chordae

tendinae

Chordae

tendinae

Final Check point Students should be able to trace pathway of blood through great vessels and heart.(begin with vena cava and end with vena cava)

That’s All folks!…help clean up.