1. sa (sinu-auricular) node of keith-flack
arthur berridale keith 1866-1955
martin william flack 1882-1931
20 x 5 mm 0.05 m/s
2a. tractus internodalis anterior of bachmann
jean george Bachmann 1877-1959
2b. tractus internodalis mesialis of wenckebach
karel frederik wenckebach 1864-1940
2c. tractus internodalis posterior of thorel
thorel
3. av node (body) of aschoff-tawara
ludwig aschoff 1866-1942
sunao tawara 1873-1952
2 x 5 mm 0.05 m/s
3b. av-node (lower part)
4a. av-node (lower part)
4b. bundle of his
wilhelm his jr. 1863-1934
20 x 1 mm 0.8 – 1.0 m/s
5. bundle branches
rbb right bundle branche
5a. rf right fascicular
lbb left bundle branches
5b. laf left anterior fascicle
5c. lpf left posterior fascicle
6. vessels of purkinje
johannus evangelista purkinje 1787-1869
4 m/s
pr-interval 120-200 ms
pa-interval 10 - 20 ms
ah-interval 70 -120 ms
hv-interval 40 - 55 ms
his-bundle 0.8 - 1.0 m/s
purkinje fibers 4 m/s
qrs-complex 90 ms - 105 ms
mid-septum 10 ms
as and apex 10ms
id = vat__ lv 40 ms
late activation 20 ms:
upper septum, conus pulm and posterobasal
