Heart Dissection 101

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Pig Heart Dissection 101
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(gulp)But sheep have nice hearts
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Supplies you will use
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Scalpel Blade
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Scalpel Handle
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Surgical Scissors
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Hemostats
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Dissection Tray Pig Heart
Dont forget your gloves!
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Slide blade on scalpel handle.
Peel back blade packet halfway. Slide over narrow
tip of scalpel handle.
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Scalpel is now ready for dissection.
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Exterior Anatomy of the Heart
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Base
Apex
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Auricles
Ear-shaped extensions of the atria.
Rt.
Lt.
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The auricles wrap around to the anterior side of
the heart.
Anterior
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The Coronary Vessels
The cardiac muscle receives oxygen for metabolism
and releases waste products into coronary vessels.
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Anterior View
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The Great Vessels
The large veins arteries, which transport blood
to and from the heart muscle.
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Locating the great vessels
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Anterior View--Aortic Arch
Aorta
Arising from the left ventricle of the heart is
the largest artery of the body, the aorta.
Rt.
Lt.
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Anterior View--Aortic Arch
Lt. common carotid
Brachiocephalic trunk (innominate artery)
Rt.
Lt.
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Aorta Posterior View
Aorta
Lt.
Rt.
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Posterior View--Vena Cavae
Superior Vena Cava
Inferior Vena Cava
Lt.
Rt.
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Posterior View--Pulmonary Artery
Lt. Pulmonary Artery
Lt.
Rt.
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Posterior View--Pulmonary Veins
Rt.
Lt.
Pulmonary veins are inferior to pulmonary
arteries.
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Rt. Pulmonary Vein
Lt. Pulmonary Vein
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Interior Anatomy of the Heart
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Dissect heart on the coronal plane.
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Open heart on dissection tray.
Anterior half
Posterior half
Rt.
Lt.
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Rt. Atrium
Lt. Atrium
aorta
Septum
Rt.
Lt.
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aorta
Width of right ventricular wall
Width of left ventricular wall
Septum
Lt. Ventricle
Rt. Ventricle
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Tricuspid valve
Cusp of valve
Septum
Papillary muscles
Chordae tendinae
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Mitral valve
Septum
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cusp
Septum
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Chordae tendinae
Chordae tendinae
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Check points--Exterior Heart Students should be
able to point out

• Apex Base of heart
• Coronal Plane
• Anatomical Right Left Sides of heart
• Anterior Posterior Sides of heart
• Auricles
• Coronary Vessels

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Check points--Interior Heart Students should be
able to point out

• Septum
• Atria Ventricles
• Tricuspid Valve, Pulmonary Valve
• Mitral Valve, Aortic Valve
• Chordae Tendinae
• Papillary Muscles

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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)
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Thats All folks! and dont forget to clean up.