Save
103 - Heart, Lungs, Blood
Theme 1: Cardiovascular System
T1 L8 - Intro to ECG
Save
Share
Learn
Content
Leaderboard
Learn
Created by
Zey
Visit profile
Cards (20)
Once large 'cell' having many nuclei that are not separated by cell membrane?
Syncytium
Many cells functioning as one?
Functional
syncytium
Type of cardiac myocyte cells that set heart's rhythm?
pacemaker
cells
Type of cardiac myocyte cells that transit rhythm throughout the heart?
conducting
cells
Cardiomyocytes are linked by
low
resistance pathways associated with
gap
junctions at the
intercalated
discs.
What conduct impulse from SA node to AV node?
internodal bundles
The ___ means that ventricles contract after atria to permit longer and more effective ventricular filling. ?
electrical delay
Action potential conducted very
slowly
in AV node (0.05 m/s)
Order of depolarisation of the ventricular wall?
septum
,
apex
,
atrioventricular
groove
Purkinjee
fibres transmit impulse
rapidly
to the main mass of the ventricles.
Configuration of electrodes?
lead
Bottom one or two lines in ECG, spanning to the whole 10 seconds of a specific lead?
rhythm strip
Depolarisation of the atria in response to SA node triggering?
P
wave
Depolarisation of ventricles, triggers main pumping contractions?
QRS
complex
Ventricular repolarisation?
T wave
Delay of AV node to allow filling of ventricles?
PR segment
Beginning of ventricle repolarisation, should be flat?
ST
segment
Large (deep) Q waves are a sign of what?
dead
tissue (
old
MI)
When the heart rhythm is generated from the Sino-atrial node?
sinus rhythm
When the SA node is beating too quickly?
Sinus tachycardia