Sheep Heart Dissection 101
description
Transcript of Sheep Heart Dissection 101
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Supplies you will use:Supplies you will use:Supplies you will use:Supplies you will use:
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Surgical ScissorsSurgical Scissors
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HemostatsHemostats
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Dissection Tray & Sheep HeartDissection Tray & Sheep Heart
Don’t forget your g
loves!
Don’t forget your g
loves!
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BaseBase
ApeApexx
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AuriclesAuricles
Rt.
Lt.
Ear-Ear-shaped shaped
extensionextension
s of thes of the atria.atria.
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The auricles wrap around The auricles wrap around to the to the anterioranterior side of the side of the heart.heart.
Anterior
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The Coronary The Coronary VesselsVessels
The Coronary The Coronary VesselsVessels
The cardiac muscle The cardiac muscle receives receives oxygenoxygen for for
metabolism and releases metabolism and releases waste productswaste products into into coronary vessels.coronary vessels.
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AnterioAnterior Viewr View
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The Great VesselsThe Great VesselsThe Great VesselsThe Great Vessels
The large veins & arteries, The large veins & arteries, which transport blood to which transport blood to
and from the heart muscle.and from the heart muscle.
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Locating the Locating the great great
vessels:vessels:
Locating the Locating the great great
vessels:vessels:
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Anterior View--Aortic ArchAnterior View--Aortic Arch
AortaAorta
Arising from the Arising from the left ventricle of left ventricle of the heart is the the heart is the largest artery of largest artery of the body, the the body, the aorta.aorta. Rt
.Lt.
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Anterior View--Aortic Anterior View--Aortic ArchArch
Brachiocephalic Brachiocephalic trunk (innominate trunk (innominate
artery)artery)
Rt.
Lt.
Lt. Lt. common common carotidcarotid
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Aorta: Posterior View
AortaAorta
LtLt..
RtRt..
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Posterior View--Vena Cavae
Superior Superior Vena Vena CavaCavaInferior Inferior
Vena Vena CavaCava
Lt.
Rt.
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Posterior View--Pulmonary Artery
Lt. Lt. Pulmonary Pulmonary
ArteryArtery
Lt.
Rt.
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Posterior View--Pulmonary Posterior View--Pulmonary VeinsVeins
Pulmonary veins are inferior to pulmonary Pulmonary veins are inferior to pulmonary arteriesarteries..
RtRt..
LtLt..
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Rt.
Pulmonary VeinLt.
Pulmonary Vein
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Dissect heart on the coronal plane.Dissect heart on the coronal plane.
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Open heart Open heart on on
dissection dissection tray.tray.
Posterior half
Anterior half
Rt.
Lt.
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Sep
tum
Lt. AtriumRt.
Atrium
aort
a
RtRt..
Lt.Lt.
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Rt. Ventricle
Lt. Ventricle
Sep
tum
aort
a
Width of right
ventricular wall
Width of left
ventricular wall
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Chordae
tendinae
Tricuspid valve
Cusp of valve
Papillary
muscles
Septu
m
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Mitral valve
Septu
m
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Septu
m
cusp
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Chordae
tendinae
Chordae
tendinae
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Check points--Exterior HeartCheck points--Exterior Heart
Students should be able to point Students should be able to point out:out:
•ApexApex & & BaseBase of heart of heart
•Coronal PlaneCoronal Plane
•Anatomical Anatomical RightRight & & Left SidesLeft Sides of heartof heart
•AnteriorAnterior & & Posterior SidesPosterior Sides of of heartheart
•AuriclesAuricles
•Coronary VesselsCoronary Vessels
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Check points--Interior HeartCheck points--Interior Heart
Students should be able to point out:Students should be able to point out:
•SeptumSeptum
•AtriaAtria & & VentriclesVentricles
•Tricuspid ValveTricuspid Valve, , Pulmonary Pulmonary ValveValve
•MitralMitral ValveValve, , Aortic ValveAortic Valve
•Chordae TendinaeChordae Tendinae
•Papillary MusclesPapillary Muscles
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Final Check pointFinal Check point
Students should be able to trace pathway Students should be able to trace pathway of blood through great vessels and heart.of blood through great vessels and heart.
(begin with vena cava and end with vena cava)(begin with vena cava and end with vena cava)
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That’s All folks!…and don’t forget
to clean up.