1. Sheep Heart

2. Anterior longitudinal sulcus

3. Auricle

4. What LAYER of tissue is this?
Endocardium (inside all chambers where blood touches)
Myocardium (meaty areas of brown muscle
Visceral pericardium (outer shiny surface of heart)
Apex

5. What CHAMBER is this? Right atrium What CHAMBER is this? Left atrium
What CHAMBER is this? Right ventricle
What CHAMBER is this? Left ventricle
Apex

6. Atrial septum
Right atrium
Left atrium
Tricuspid valve
Mitral (bicuspid) valve
Left ventricle
Right ventricle
Apex
Interventricular septum
Apex

7. Aortic semilunar valve
Mitral (bicuspid) valve
Cordae tendonae
Papillary muscles
Trabeculae carnae

8. Aortic semilunar valve
Mitral (bicuspid) valve
Cordae tendonae
Papillary muscle
Trabeculae carnae

9. Mitral (bicuspid) valve

10. Mitral (bicuspid) valve
Papillary muscle

11. Tricuspid valve

12. Atrial septum
Right atrium
Left atrium
Tricuspid valve
Mitral (bicuspid) valve
Left ventricle
Right ventricle
Apex
Interventricular septum
Apex

13. Pulmonary trunk
Aorta
Superior vena cava

14. Aortic semilunar valve
Aorta
Pulmonary trunk, which branches into pulmonary arteries
Pulmonary veins enter Left atrium
Aortic semilunar valve

15. Aorta

16. Superior vena cava
Inferior vena cava
Pulmonary vein

17. (leaving right ventricle)
Pulmonary artery
(leaving right ventricle)

18. Pulmonary artery as seen from back of heart
(leaving right ventricle)
Coronary sinus (back of heart)

19. Moderator band

20. Moderator band (right ventricle only)

21. Moderator band

22. Pulmonary semilunar valve
Mitral (bicuspid) valve
Aortic semilunar valve (look deep under here)
Tricuspid valve
Cordae tendonae
Papillary muscles
Trabeculae carnae

23. Pulmonary
trunk
Pulmonary
veins
R. Coronary artery
L. Coronary artery
Anterior interventricular artery
Circumflex artery