cardiac impulse Flashcards
1
Q
myogenic
A
- contracts and relax on its own accord
- no nervous or hormonal simulation
2
Q
Sino-atrial node
A
- acts as pacemaker
- located in right atrium wall
- causes atrial systole
3
Q
atrio-ventricular node
A
- impulse is picked up
- located In the wall of right atrium (base)
4
Q
bundle of His
A
- impulse conducted through
- from bundle of his to the apex of the ventricles
5
Q
purkinje fibres
A
impulse travels through fibres to ventricle walls
-causes cardiac muscle of ventricles to contract
