Conducting sys heart Flashcards
1
Q
Impulses are produced
A
in sinu-atrial node in right atrium
2
Q
They pass through atria to
A
AV node and then bundle of his
3
Q
BUndle of his divides into
A
right and left bundles of Tawara
4
Q
What do bundles of tawara do
A
carry impulse to right and left ventricles
5
Q
Final branches are
A
purkinje fibers - supply ventricular muscles
6
Q
Autonomic innervation of the heart
A
sympathetic system - cardiac nerves from 3 cervical and some thoracic sympathetic ganglia
parasympathetic system - arise from vagus nerve
