I hear sheep have really nice hearts boys and girls

Hello Piggy Heart

Don’t forget your g

loves!

What two types of tissue make this up?

Why does it secrete an inner fluid that bathes the heart?

How can you tell this is the anterior portion of the heart?

This ?

And This ?

Provide two reasons why this is the left ventricle!

What the heck are these?

Rt.

Lt.

Ear-shaped

extensions

What chambers would be found inside these?

How can you tell this is the posterior portion of the heart? 1 2 3

Y

X

The Coronary Vessels

The cardiac muscle receives oxygen/nutrients for metabolism from the

coronary arteries and releases carbon dioxide and waste products into

the cardiac veins.

Anterior View

The Great Vessels

The very large veins & arteries, which transport

blood to and from the heart muscle

Locating the great 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.

Aorta: Posterior View

Aorta

Lt.

Rt.

Posterior View--Vena Cavae

Superior Vena CavaInferior

Vena Cava

Lt.

Rt.

Posterior View--Pulmonary Artery

Lt. Pulmonary

Artery

Lt.

Rt.

Posterior View--Pulmonary Veins

Pulmonary veins are inferior to pulmonary arteries.

Rt.

Lt.

Rt.Pulmonar

y VeinLt.Pulmonary Vein

Top View of the heart

1?

3?

2?

Sep

tum

Lt. AtriumRt.

Atrium

aort

a

Rt.

Lt.

Rt. Ventricle

Lt. Ventricle

Sep

tum

aort

a

Width of right

ventricular wall

Width of left

ventricular wall

Structure and

Function

Which AV

Valve? Cusp of valve

Who be it? S

eptu

m

Who Be it and what sound does it make?

Septu

m

Septu

m

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!…and don’t forget

to clean up.