1. Heart

2. STRUCTURES TO KNOW ON THE SHEEP HEART
A. myocardium
B. endocardium
C. visceral pericardium
1. apex
2. interventricular septum (IV septum)
3. left ventricle
4. right ventricle
5. right atrium
6. left atrium
7. papillary muscles
8. chordae tendinae
9. tricuspid valve
10. mitral valve (bicuspid valve)
11. trabeculae carneae
12. aorta
13. aortic semilunar valve

3. 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

4. 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

5. Pulmonary artery
Aorta
Superior vena cava

6. Aortic semilunar valve
Mitral (bicuspid) valve
chordae tendineae
Papillary muscles
trabeculae carneae

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

8. STRUCTURES TO KNOW ON THE HUMAN HEART
A. myocardium
B. endocardium
C. visceral pericardium
D. pulmonary trunk
E. pulmonary veins (there are four)
F. pulmonary arteries
G. right coronary artery
H. left coronary artery
I. Circumflex artery
J. posterior interventricular artery
K. anterior interventricular artery
L. Right brachiocephalic
M. Right subclavian
N. Right common carotid
O. Left common carotid
P. Left subclavian

9. Endoocardium
Myocardium
Visceral pericardium (outer shiny surface)

10. STRUCTURES TO KNOW ON THE HUMAN HEART
1. apex
2. Interventricular septum (IV septum)
3. left ventricle
4. right ventricle
5. right atrium
6. left atrium
7. atrial septum
8. chordae tendinae
9. papillary muscles
10. mitral valve (bicuspid valve)
11. tricuspid valve
12. pulmonary semilunar valve
13. aortic semilunar valve
14. aorta
15. superior vena cava
16. inferior vena cava
17. trabeculae carneae

11. Superior vena cavae
L. Pulmonary artery
Aorta
Pulmonary trunk
Right Atrium
Left Atrium
Auricle
(ear shaped)
Left coronary artery
Right coronary artery
Apex

12. Posterior view of heart
Trachea
Superior vena cavae
Aorta
Pulmonary veins
Pulmonary veins
Left Atrium
Right Atrium
Coronary sinus
Inferior vena cavae
Posterior interventricular artery

13. Auricle
Apex
Right atrium

14. Coronary sinus

15. Pulmonary semilunar valve

16. Pulmonary trunk
Pulmonary semilunar valve
Aortic semilunar valve

17. Auricle
Left Atrium
Right Atrium
Atrial septum
Anterior interventricular artery
Interventricular septum
Right Ventricle
Left Ventricle

18. Pulmonary semilunar valve
Mitral (bicuspid) valve
Aortic semilunar valve (look deep under here)
Tricuspid valve
chordae tendineae
Papillary muscles
trabeculae carneae

19. Pulmonary semilunar valve
Look up here to see aortic semilunar valve

20. Pulmonary
veins
R. Coronary artery
L. Coronary artery
Anterior interventricular artery
Circumflex artery

21. Left common carotid artery
R. common carotid artery
R. subclavian artery
R. Brachiocephalic artery
Left subclavian artery
Aorta
Superior vena cava
Pulmonary trunk
L. Pulmonary
artery

22. Trachea
Esophagus
Inferior vena cava

23. Fetal Circulation

24. FETAL CIRCULATION
Umbilical vein carries oxygenated blood from the placenta; it is the VESSEL where blood is most highly oxygenated.
Right atrium is the CHAMBER where blood is most highly oxygenated
Foramen ovale is the hole between the fetal atria
Ductus arteriosus is the connection between the pulmonary artery and the aorta

25. Fetal Circulation