Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Ekg > test 2 > Flashcards

test 2 Flashcards

1
Q

What is recorded on the ECG strip?

A

The electrical activity of the heart

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

The average heart is approximately what size?

A

The size of your fist

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

The outermost layer of the heart is the:

A

epicardium.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

The middle layer of the heart is the:

A

myocardium.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

The innermost layer of the heart is the:

A

endocardium.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

The sac of tissue that encloses the entire heart is the:

A

pericardium.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

The purpose of the pericardium is to:

A

protect the heart from infection and trauma.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

The heart is divided into four chambers. The top chambers are the:

A

right atrium and left atrium.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

The heart is divided into four chambers. The bottom chambers are the:

A

right ventricle and left ventricle.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

The valve located between the right atrium and right ventricle is the:

A

tricuspid valve.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

The valve located between the left atrium and left ventricle is the:

A

mitral (bicuspid) valve.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

The tricuspid and mitral (bicuspid) valves are known as ________blank because they separate the atria from the ventricles.

A

atrioventricular (AV) valves

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

The ________blank valves separate the ventricles from the arteries leading to the lungs and body.

A

semilunar

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

The two semilunar valves are the:

A

aortic and pulmonary valves.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Blood returns to the heart via the veins. The largest vein is the:

A

vena cava.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Which blood vessels provide oxygen and nutrients directly to the heart muscle?

A

Coronary arteries.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

The valves located in the heart are important because they:

A

prevent blood from flowing backwards.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Blood that leaves the right ventricle is considered:

A

deoxygenated.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

The “lubb” and “dupp” sounds you hear are made by the:

A

opening and closing of the heart valves.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

The phase of the cardiac cycle when the heart is expanding and refilling, also known as the relaxation phase, is:

A

diastole.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

The phase of the cardiac cycle when the heart is pumping blood out to the body, also known as the contraction phase, is:

A

systole.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Together, the contraction and relaxation of the heart make up:

A

the cardiac cycle.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

The heart’s own ability to initiate an electrical impulse without being stimulated by another source is known as:

A

automaticity.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

The ability of the heart cells to receive and transmit an electrical impulse is known as:

A

conductivity.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
The ability of the heart muscle cells to shorten in response to an electrical impulse is known as:
contractility.
26
The ability of the heart muscle cells to respond to an impulse or stimulus is known as:
excitability.
27
When the sympathetic branch of the ANS (automatic nervous system) is stimulated, the heart responds by:
speeding up
28
What is the heart's response to stimulation of the vagus nerve?
it slows down
29
The function of the bundle branches is to:
conduct electrical impulses from the AV bundle to the left and right ventricles.
30
The SA node sends electrical impulses at a rate of:
60-100 bpm
31
The primary pacemaker of a normal heart, where the electrical impulse for the heartbeat originates, is the:
SA node
32
The AV node has several important functions that help the heart work effectively. Which of the following is not a function of the AV node?
It causes a loss of atrial kick.
33
Circulation is the process of:
transporting blood to and from body tissues.
34
Which of the following statements best describes the function of the heart?
It pumps blood to and from the body tissues.
35
Systemic circulation is the movement of blood:
throughout the body tissues.
36
Coronary circulation is the movement of blood:
to and from the heart muscle.
37
Coronary circulation is the movement of blood:
to and from the heart muscle.
38
In pulmonary circulation, blood is transported from the right ventricle to the:
lungs
39
The average volume of blood pumped each minute in a normal heart is:
5 liters per minute.
40
Which of the following statements is true about heart rates?
Children's heart rates depend on the age and size of the child.
41
Which of the following actions occurs during systole?
The pulmonary and aortic valves open.
42
The part of the autonomic nervous system that helps slow the heart rate is the:
parasympathetic branch
43
Which of the following electrolytes plays a large role in the control of the heart rate?
potassium
44
The structure that relays an electrical impulse from the SA node to the left atrium in a normal heart is the:
bachmann's bundle
45
The structure that transfers an electrical impulse from the atria to the ventricles is the:
bundle of His
46
Electrical impulses are spread throughout the ventricles by the:
purkinje network
47
Each electrical activity of the heart is ________blank on the ECG.
recorded
48
Through the process of circulation, ________blank transports nutrients and other elements to and from the body tissues.
blood
49
What is another term for the visceral pericardium, which is the outermost layer of the heart?
Epicardium
50
When the heart contracts, the right ventricle pumps ________blank blood to the lungs via the pulmonary artery; the pulmonary veins transport ________blank blood back to the heart into the left atrium.
deoxygenated, oxygenated
51
The pathways for pumping blood throughout the body and back to the heart are known as ________blank circulation.
systemic
52
The circulation of blood to and from the heart muscle is known as ________blank circulation.
coronary
53
What is the relaxation phase of the heart called?
diastole
54
In adults, the average heart beats approximately:
60-100 bpm
55
The ability of the heart muscle cells to shorten in response to an electrical stimulus is known as:
contractility.
56
The pathway for pumping blood throughout the body and back to the heart is called:
systemic circulation.
57
The inferior and superior venae cavae enter the heart via the:
right atrium
58
When the sympathetic branch of the autonomic nervous system is stimulated, the heart rate is expected to:
increase
59
When the parasympathetic branch of the autonomic nervous system is stimulated, acetylcholine is secreted, which causes the heart rate to:
decrease
60
The chamber responsible for pumping deoxygenated blood to the lungs is the:
right ventricle
61
The chamber responsible for pumping oxygenated blood to the body is the:
left ventricle.
62
The heart's ability to create its own electrical impulse is known as:
automaticity.
63
When stimulated, the sympathetic system of the body causes the heart rate to:
increase
64
The heart is contained inside a sac also known as the:
pericardial sac.
65
Which of the following would have the least effect on the heart rate?
respiratory rate
66
Which of the following is not true regarding heart attacks for women?
Women produce more fatty cells during their child-bearing years that can put them more at risk of developing cardiac problems in later years.
67
What is the outermost layer of a blood vessel called?
Tunica adventitia
68
What is the function of the tunica adventitia?
keep the vessel open
69
What is the middle layer of a blood vessel called?
tunica media
70
What is the function of the tunica media?
Dilate and constrict to maintain homeostasis
71
What is the innermost layer of a blood vessel called?
tunica intima
72
What is the function of the tunica intima?
Come in direct contact with the blood
73
Which layer of a blood vessel is prone to disruption when atherosclerotic plaque is ruptured and peels away?
Tunica intima
74
What is the term for an oppressive pain or pressure in the chest that occurs when the heart muscle does not receive enough oxygen due to partial or complete blockage of a coronary artery?
angina
75
A patient with diabetes is how many times more likely than patients without diabetes to experience a heart attack?
two times
76
What is the term for the fatty deposits accumulated that are caused by elevated glucose level in the blood?
Atherosclerotic plaque
77
Which major coronary artery supplies blood to both ventricles?
Left anterior descending
78
Which of the following serves as the pacemaker in a normal heart?
SA node
79
Where are the ventricular pacemaker cells found?
at the purkinje fibers
80
What is the inherent rate of the Purkinje network?
20-40 bpm
81
What is the normal, inherent rate of the AV node?
40-60 bpm
82
The term bradycardia means:
slow heart rate
83
The term tachycardia means:
fast heart rate
84
What is the number one cause of death in the United States?
cardiovascular disease
85
The abbreviation CAD stands for:
coronary artery disease.
86
The abbreviation for myocardial infarction, also known as a heart attack, is:
MI
87
Continuous ECG monitoring done in a hospital setting with a small transmitter box is known as:
telemetry monitoring.
88
HIPAA stands for:
Health Insurance Portability and Accountability Act.
89
The medical term for an abnormal heartbeat is:
dysrhythmia
90
What does the term "Code Blue" mean when used in a hospital setting?
A patient is unresponsive and needs immediate assistance.
91
QRS duration measurement is essential to determine the time it takes for:
ventricular depolarization.
92
The QRS complex represents the time it takes for:
the ventricles to depolarize.
93
If you can't identify an R wave on the ECG tracing, which of the following wave(s) can you use to determine the regularity of the ventricles?
Q and S wave junction
94
Depolarization of the cells causes the heart muscle to:
contract
95
The P wave represents:
atrial depolarization.
96
The T wave represents:
ventricular repolarization.
97
The state in which the inside of each heart cell is negatively charged and the outside is positively charged is:
polarization
98
Hospital patients on continuous monitoring are usually in a(n):
ICU, CCU, SICU, or ER
99
Which best describes both slander and libel?
illegal and unethical
100
Select the correct answer. Which of the following is not a specific type of isolation precaution implemented for hospitalized patients?
AIDS precautions

Ekg (6 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions