Cardio Flashcards
(10 cards)
1
Q
Passive pumping mechanism of the circulatory system?
A
Elastic vessel walls
2
Q
What do veins have that prevents back flow of blood?
A
Valves
3
Q
Active pumping mechanism of blood?
A
Contractions of the heart
4
Q
Systolic pressure?
A
Pressure within the artery after receiving blood
5
Q
Diastolic pressure?
A
Pressure within the artery when in a relaxed state
6
Q
What mechanism does atrial contraction utilize in order to “kick” start contraction
A
The Frank-Starling mechanism
7
Q
Which node slows down conduction to create a physiologic block?
A
The AV node
8
Q
What acts as a firewall in the heart?
A
The AV septum
9
Q
The four origins of arrhythmia by region
A
SA node (sinus)
Atrial
AV node (nodal)
Ventricular
10
Q
Point of maximal impulse (PMI)
A
The impulse palpable at the apex of the heart
