2- Electrical Physiology Flashcards
1
Q
why is conducttion velocity so high in the atrial myocardium
A
they are connected by gap junctions
2
Q
where is conduction velocity fastest
A
in the bundle branches and purkinje fibers (small unmyelinated nerves)
3
Q
atrial myocyte depolarization =
A
p wave
4
Q
ventricular myocyte depolatization =
A
QRS complex
5
Q
all electrical events upstream of ventriuclar myocytes =
A
PR interval
6
Q
ventricular myocyte repolarization =
A
T wave
7
Q
entire AP for ventricular myocytes =
A
QT interval
8
Q
ventricular myocyte plateau phase =
A
ST segment
9
Q
normal PR interval
A
0.12-0.2
10
Q
normal QRS interval
A
0.03-0.12
11
Q
normal QT interval
A
half R-R
12
Q
normal ST interval
A
variable with HR
