Intro to cardiac Flashcards
1
Q
Veins
A
to heart
2
Q
arteries
A
away from heart
3
Q
cardio fun facts
A
- 2000 gallons a day
- 2.5 billion beats in a lifetime
- 60,000 miles of blood vessels
4
Q
Pulmonary circuit
A
Deoxygenated blood
to lungs
– Right to left
5
Q
Systemic circuit
A
Oxygenated blood to
tissues
– Left to right
6
Q
atrial excitation
A
begins: SA node
complete: AV node
7
Q
ventricular excitation
A
begins: atrial relaxation
complete: excitation in purkinje fibers
8
Q
ventricular relaxation
A
T wave with bundle branches
9
Q
ECG or EKG
A
electrocardiogram
P wave, QRS complex, T wave
10
Q
P wave
A
Atrial depolarization
11
Q
QRS complex
A
ventricular depolarization
12
Q
T wave
A
ventricular repolarization
13
Q
Commotio cordis
A
ascending T wave impacted
- heart cannot repolarize and blood cannot travel
