Cardiac System Flashcards
(64 cards)
1
Q
Identify right atrium
A
2
Q
Identify right ventricle
A
3
Q
Identify left atrium
A
4
Q
Identify left ventricle
A
5
Q
Identify vena cava
A
6
Q
Identify aorta
A
7
Q
Identify pulmonary artery
A
8
Q
Identify pulmonary vein
A
9
Q
Identify AV valves
A
10
Q
Identify mitral valve
A
11
Q
Identify aortic semilunar calce
A
12
Q
Identify pulmonary semilunar valve
A
13
Q
Identify chordae tendinae
A
14
Q
Identify apex
A
15
Q
Identify base
A
16
Q
Identify pericardium
A
17
Q
Identify myocardium
A
18
Q
Identify endocardium
A
19
Q
Identify SA node
A
20
Q
Identify internodal pathways
A
21
Q
Identify AV node
A
22
Q
Identify AV bundle
A
23
Q
Identify bundle branches
A
24
Q
Identify prukinje fibers
A
25
Path of blood flow
26
How do the valves operate?
27
What causes valves to open and close?
28
Where is backflow possible?
29
Stages of cardiac cycle (anatomical structure and positions of valves during)
30
The atria beat...
Simultaneously
31
The ventricles beat...
Simultaneously
32
Why do the atria and ventricles beat simultaneously?
Muscle attachment
33
Arteries carry blood ___ the heart
away from
34
Veins carry blood ____ the heart
to
35
When is blood oxygenated vs deoxygenated in arteries?
36
When is blood oxygenated vs deoxygenated in veins?
37
How is the heart muscle supplied with blood
38
Mechanism of MI
39
How can bypass help prevent MI?
40
Duration of cardiac APs vs neural APs
200-300 ms vs 1-2 ms
41
APs of pacing and conduction tissue vs typical cardiac APs
42
Depolarization and repolarization order for atria and ventricles
43
Duration of APs required for depolarization and repolarization
44
Contraction of atria
top to bottom
45
Contraction of ventricles
bottom to top (apex to base)
46
Atrial contraction is responsible for about ____ of blood flow into ventricles
20%
47
1st heart sound
Cause, EKG position
48
2nd heart sound
Cause, EKG position
49
3rd heart sound
Cause, EKG position
50
4th heart sound
Cause, EKG position
51
Electrical events necessary to generate EKG
52
State of heart during points on EKG
53
Atrial T wave is ____. Why? Is it seen?
Negative, ___, not usually
54
Ventricular T wave is ____. Why? Is it seen?
Positive, ____, yes
55
Lead I
56
Lead II
57
Lead III
58
Cardiac Vector
How is it measured? What does it represent? How is it related to EKG measurements?
59
How is excitation propagated through the heart?
Gap junction, mech
60
How does nervous system influence heart rate?
61
Heart muscle is usually in ___ state
Excited
62
EKG Lab
H
63
Heart Sounds Lab
64
EKG Probs
