Transcript N Piggy Heart Dissection

I hear sheep have really nice
hearts boys and girls
Hello Piggy Heart
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?
Ear-shaped
extensions
What chambers would be found inside these?
Rt.
Lt.
How can you tell this is the posterior portion of the heart?
1 2
3
X
Y
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 Cava
Inferior
Vena Cava
Lt.
Rt.
Posterior View--Pulmonary Artery
Lt. Pulmonary
Artery
Lt.
Rt.
Posterior View--Pulmonary Veins
Rt.
Lt.
Pulmonary veins are inferior to pulmonary arteries.
Rt.
Lt.
Pulmonary
Vein
Pulmonary
Vein
Top View of the heart
3?
1?
2?
Rt. Atrium
Rt.
Lt. Atrium
Lt.
Width of right
ventricular
wall
Rt. Ventricle
Width of
left
ventricular
wall
Lt. Ventricle
Which AV
Valve?
Cusp of
valve
Who be
it?
Structure
and
Function
Who Be it
and what
sound
does it
make?
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.