Cardiac Electrical Conduction DIAGRAMS

1. SA node

2. AV node

3. left posterior bundle

4. right bundle

5. purkinje fibers

6. His bundle

7. Bachmann’s bundle

1. SA node

2. anterior, middle, and posterior internodal tracts

3. AV node

4. RBB

5. Purkinje fibers

6. LBB

7. bundle of his

8. interatrial bundle/bachmann’s bundle

1. posterior cusp

2. left cusp

3. right cusp

4. aortic valve

5. interventricular

6. atrioventricular

7. membranous septum

8. paraspecific fibers of Mahaim

9. LBB

10. anterior papillary muscle

11. Purkinje fibers

12. posterior papillary muscle

13. muscular interventricular septum

14. mitral valve cut away

15. R. pulmonary veins

16. Bachmann’s bundle

17. LAA

18. SVC

19. pulmonary trunk

20. aorta

1. Bachmann’s bundle

2. SVC

3. nodal artery

4. SA node

5. anterior internodal tract

6. crista terminalis

7. middle internodal tract

8. posterior internodal tract

9. “bypass” fibers

10. accessory bundle of Kent

11. IVC

12. annulus of tricuspid valve

13. anterior papillary muscle

14. moderator band

15. Purkinje fibers

16. RBB

17. common AV bundle (his)

18. AV node

19. pulmonary valve

20. interventricular

21. atrioventricular

22. membranous septum

23. aorta

1. SA node

2. AV node

3. bundle of his

4. RBB

5. Purkinje fibers

6. fascicles

7. LBB

8. central fibrous body

1. SA node

2. middle tract (Wenkebach)

3. posterior tact (Thorel’s)

4. Purkinje fibers

5. ventricular muscle

6. LBB

7. AV node

8. atrial muscle

9. anterior tract

10. anterior tract (Bachmann’s bundle)

1. crista terminalis (SA node complex)

2. eustachian ridge

3. putative “slow pathway”

4. tricuspid valve leaflets

5. CS os

6. tendon of Torado

7. bundle of His

8. putative “fast pathway”

1. anterior internodal tract

2. middle internodal tract (Wenchebach’s)

3. posterior internodal tract (Thorel’s)

4. bundle of Kent

5. central fibrous body

6. proximal AV bundle

7. Mahaim fibers

8. RBB

9. LBB

10. distal AV bundle (bundle of his)

11. AV node

1. internodal pathways

2. RBB

3. ventricular septum

4. LBB

5. distal portion of AV bundle (bundle of his)

6. penetrating portion of AV bundle

7. atrioventricular fibrous tissue

8. AV node

9. transitional fibers

1. 60-100

2. none

3. 40-60

4. 25-40

5. 25-40

6. 25-40

7. none

8. <0.1

9. 1-1.2

10. 0.02-0.05

11. 1.2-2

12. 2-4

13. 2-4

14. 0.3-1

1. -50 to -60

2. -80 to -90

3. -60 to -70

4. -90 to -95

5. -80 to -90

6. >0.05

7. 1

8. <0.05

9. 3

10. 1

11. 100-300

12. 100-300

13. 100-300

14. 300-500

15. 100-200