Heart conduction
Sinoatrial (SA) and atrioventricular (AV) nodes
An ECG records these events in the heart.
Electrical activity
Systolic BP represents this event of the heart chambers.
Ventricular contraction
1
Common carotid arteries
hypo-
Under; below
Depolarization
The P wave is the result of this event in the heart.
Atrial depolarization
The SECOND heart sound is the result of this event in the heart.
Closing of the semilunar (SL) valves
2
Ciliac trunk
auto-
Self
Depolarization of the ventricles starts at this structure of the heart.
Apex
The QRS complex is the recording of this event in the heart.
Ventricular depolarization
A BP test is taken at this artey.
Brachial artery
3
Popliteal vein
crani-
Skull
These structures allow for rapid depolarization and repolarization across myocardial cells.
Gap junctions
An elevated R wave is the result of what?
Enlarged ventricles
The status of the ventricles during passive filling.
Systole (relaxed)
4
External jugular vein
esthe-
Sensation
These structures conduct impulses through the interventricular septum.
Bundle branches
An elevated S-T segment may indicate this clinical condition.
Myocardial infarction (heart attack)
The first audible sounds during a BP test is known as this.
Systolic BP
5
Inferior mesenteric artery
rigor-
Stiffness