heart Flashcards
1
Q
myocardium is thickest in
A
left ventricle
2
Q
myocardium is made up of and what do they do
A
specialised muscle fibres and they generate propogate and transmit/perpetuate
3
Q
functional charcteristics of myocardial fibres
A
automaticity, self excitable , non tetanisable non fatigued not individually innerved syncitium
4
Q
location of sino atrial node
A
5
Q
location of atrio ventricular node
A
6
Q
which part of heart has no myocardium
A
a v fibrous band
7
Q
alternate pacemaker
A
avn
8
Q
who activates the atrial myocardium
A
san
9
Q
how long is the av delay
A
0.2 seconds
10
Q
who spreads the impulse from endocardium to epicardium
A
purkinje fibres
11
Q
at resting stage cell membrane is permeable to
A
k+ due to its small size
