Vocabulary
EKG or ECG stands for…
electrocardiogram
What goes first in the conduction system?
SA node
How many electrodes are used to perform an EKG?
10
What are the vena cavas in which the blood flow starts?
Superior and inferior
What is the first wave in the QRS complex
P wave
What are electrodes?
sticky skin sensors that attach to the patient
What goes second in the conduction system?
AV node
Where would you place V1?
4th intercostal space, right sternal edge
Where does the blood flow after superior and inferior vena cava?
right atrium
Is the r wave positive or negative?
positive
Define arrhythmia…
abnormal cardiac rhythm
What goes third in the conduction system?
AV bundle
Where would you place V3?
midway between V2 and V4
What valve comes after right atrium?
Tricuspid
what does the j point mark?
marks the end of a QRS complex
EKG machine is also called an…
electrocardiograph
What goes fourth and fifth in the conduction system?
4.bundle branches
5.purkinje fibers
Where would you place RA?
Right forearm or wrist
True or false:blood re-enters through pulmonary veins.
TRUE
what does the t wave represent?
the repolarization of the ventricles
Define interval
duration and distance between waves
When the SA node is stimulated, what mechanical action happens in the heart?
The Atria contracts
Where would you place V6?
mid-axillary line in straight line with V4 and V5
Whats the last place the blood flows?
The body
What does the p wave do?
represents atrial depolarization