1. Cardiac Anatomy

2. left atrium Left atrial appendage Left ventricle anterior wall
Mitral valve
Papillary muscles
Left ventricle inferior wall

3. mitral valve Pulmonary valve Right atrial appendage Infundibulum
Anterior
leaflet
Posterior
leaflet
Infundibulum
Tricuspid valve

4. left ventricle outflow tract
Sinotubular junction R
Sinuses of Valsalva N L
Ascending aorta
Sinotubular junction
Sinuses of Valsalva

5. aortic valve Right ventricle outflow tract Right coronary cusp
Right atrium
Noncoronary cusp
Left coronary cusp
Left atrium

6. papillary muscles Right ventricle outflow tract Right ventricle A A
Anterolateral
Right ventricle outflow tract
Right ventricle A
Posteromedial A
Trabeculations P
Interventricular septum P

7. chordae tendinae
Papillary muscles
Mitral valve

8. left ventricular walls
Anterior wall
Septal wall
Lateral wall
Inferior wall

9. right atrial appendage
has a wide origin and a
broad and triangular
appearance. Left atrial
appendage has a
narrower origin and a
tubular shape
Right ventricle outflow tract
Superior caval vein
Left atrial appendage
Pulmonary veins

10. crista terminalis
The crista terminalis is a ridge in the right atrium that separates the two components of the right atrium, the sinus venosus (smooth muscles) and the atrium of the AV valve
(pectinate muscles)
Right ventricular free wall
Apex
Aortic valve
Mitral valve
Interatrial septum

11. coronary sinus Moderator band Right coronary artery Thebesian valve
Posterior
interventricular
vein
The Thebesian
valve is a remnant of
the right venous valve
Thebesian valve
Inferior caval vein CS

12. eustachian valve
The Eustachian valve is a fibromuscular web that attached to the opening of the inferior caval vein
Superior caval vein
Tricuspid anterosuperior leaflet
Tricuspid
inferior leaflet
Cavotricupid isthmus EV
Inferior caval vein

13. right ventricular outflow tract
Aortic valve
Left atrium
Mitral valve
Right ventricular trabeculations
Apex
Crista
supraventricularis

14. moderator band The moderator band is a muscular band that
extends from the
interventricular septum
to the base of the
anterior papillary
muscle in the RV
Chordae tendinae
Pectinate muscles

15. Conal papillary muscle
Anterior descending artery
Right coronary artery
Foramen oval
The right ventricle
contains anterior and
posterior papillary
muscles and a smaller
conal papillary muscle
The conal papillary muscle arises from the septal band of the
interventricular septum
Circumflex
artery

16. right coronary artery
Aortic root
Left ventricle

17. conus artery Acute marginal branch Right coronary artery
AMB
PDA
Acute marginal branch
Right coronary artery
The conus artery is
the first branch of the
right coronary artery
in 50-60% of patients

18. posterior descending artery
Circumflex artery
The coronary artery that gives rise to the PDA and posterolateral branch is referred to as the dominant artery, with the RCA being dominant in approximately 70% of cases.
Obtuse marginal branch
Posterolateral artery

19. Anterior descending artery
left coronary artery
LCA
LCx RI
LAD
Right coronary artery
In 15% of patients, a
third branch (ramus intermedius) arises at
the division of the LCA,
resulting in a
trifurcation
Circumflex artery
Anterior descending artery

20. anterior descending artery

21. Anterior descending artery
diagonal branches
Anterior descending artery

22. Anterior descending artery
septal branches
Right coronary artery
Anterior descending artery
Left coronary artery

23. circumflex artery
Left coronary artery
LCA
LAD

24. obtuse marginal branch
LCA
LCx
The left circumflex artery courses in the left atrioventricular groove and gives off obtuse marginal branches to the lateral left ventricle
LAD

25. sinoatrial nodal artery
Right coronary artery
The sinoatrial nodal
artery arises from the
RCA in approximately
58% of patients; in the
remaining patients it
arises from the left
circumflex artery
Left circumflex artery
Ramus intermedius artery
Left coronary artery
Diagonal branches