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Sheep Heart Dissection 101

Sheep Heart Dissection 101. Supplies you will use:. Dissection Tray & Sheep Heart. Don’t forget your gloves!. Exterior Anatomy of the Heart. Base. Apex. Auricles. Ear-shaped extensions of the atria. Rt. Lt. The auricles wrap around to the anterior side of the heart. Anterior.

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Sheep Heart Dissection 101

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  1. Sheep Heart Dissection 101

  2. Supplies you will use:

  3. Dissection Tray & Sheep Heart Don’t forget your gloves!

  4. Exterior Anatomy of the Heart

  5. Base Apex

  6. Auricles Ear-shaped extensions of theatria. Rt. Lt.

  7. The auricles wrap around to the anterior side of the heart. Anterior

  8. The Coronary Vessels The cardiac muscle receives oxygen for metabolism and releases waste products into coronary vessels.

  9. Anterior View

  10. The Great Vessels The large veins & arteries, which transport blood to and from the heart muscle.

  11. Locating the great vessels:

  12. Anterior View--Aortic Arch Aorta Arising from the left ventricle of the heart is the largest artery of the body, the aorta. Rt. Lt.

  13. Anterior View--Aortic Arch Lt. common carotid Brachiocephalic trunk (innominate artery) Rt. Lt.

  14. Aorta: Posterior View Aorta Lt. Rt.

  15. Posterior View--Vena Cavae Superior Vena Cava Inferior Vena Cava Lt. Rt.

  16. Posterior View--Pulmonary Artery Lt. Pulmonary Artery Lt. Rt.

  17. Posterior View--Pulmonary Veins Rt. Lt. Pulmonary veins are inferior to pulmonary arteries.

  18. Rt. Pulmonary Vein Lt. Pulmonary Vein

  19. Interior Anatomy of the Heart

  20. Dissect heart on the coronal plane.

  21. Open heart on dissection tray. Anterior half Posterior half Rt. Lt.

  22. Rt. Atrium Lt. Atrium aorta Septum Rt. Lt.

  23. aorta Width of right ventricular wall Width of left ventricular wall Septum Lt. Ventricle Rt. Ventricle

  24. Tricuspid valve Cusp of valve Septum Papillary muscles Chordaetendinae

  25. Mitral valve Septum

  26. cusp Septum

  27. Chordae tendinae Chordae tendinae

  28. 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

  29. Check points--Interior Heart Students should be able to point out: • Septum • Atria & Ventricles • Tricuspid Valve, Pulmonary Valve • MitralValve, Aortic Valve • Chordae Tendinae • Papillary Muscles

  30. 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)

  31. That’s All folks! …and don’t forget to clean up.

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