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Anaphy Finals > The Heart > Flashcards

The Heart Flashcards

1
Q

Where is the heart located

A

In the mediastanum of thoracic cavity

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2
Q

Surrounds the heart

A

Pericardium

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3
Q

Is posterior Site where great vessels attach to the heart

A

Base

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4
Q

Inferior tip of the heart

A

Apex

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5
Q

Superior chambers

A

Atria

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6
Q

Receives deoxygenated blood from systemic circuit

A

Right atrium

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7
Q

Receives oxygenated blood from pulmonary circuit

A

Left atrium

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8
Q

Inferior chambers

A

Ventricles

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9
Q

Ejects deoxygenated blood to pulmonary trunk

A

Right ventricle

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10
Q

Divides into pulmonary arteries and sends blood to lungs

A

Pulmonary trunk

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11
Q

Ejects oxygenated blood into aorta

A

Left ventricle

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12
Q

Number the process of circulation through the heart (1-5)

Deoxygenated blood is received by right atrium

A

1

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13
Q

Where does the deoxygenated blood that is received by the right atrium come from

A

Superior vena cava, inferior vena cava, coronary sinus

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14
Q

Number the process of circulation through the heart (1-5)

Pulmonary veins carry oxygenated blood from lungs to left atrium

A

4

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15
Q

Number the process of circulation through the heart (1-5)

Blood enter right ventricle and is ejected into pulmonary trunk

A

2

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16
Q

Number the process of circulation through the heart (1-5)

Oxygenated blood enters left ventricle and is ejected into aorta and systemic arteries

A

5

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17
Q

Number the process of circulation through the heart (1-5)

Pulmonary trunk divides to form pulmonary arteries that deliver blood to lungs

A

3

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18
Q

Monitors electrical signals as they as they move through the body and cardiac muscle

A

Electrocardiogram

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19
Q

Evaluates ionic movement throughout the body

A

ECG

20
Q

Evaluates ionic movement across a cellular membrane

A

Recording microelectrode

21
Q

3 major components of a healthy ECG

A

P wave
QRS complex
T wave

22
Q

Atrial depolarization

A

P wave

23
Q

Ventricular depolarization

A

QRS complex

24
Q

What occurs at the same time

A

Atrial repolarization

25
Q

Ventricular repolarization

A

T wave

26
Q

ECG ________ and _______ are regions between waves

A

Segments and intervals

27
Q

From beginning of P wave to begining of QRS complex

A

PR interval

28
Q

What does a delay in the PR interval indicate

A

Heart block

29
Q

Elevation of __________ Indicates a heart attack

A

ST segment

30
Q

Period of time and set events that occur during one complete beat of the heart

A

Cardiac cycle

31
Q

Contraction

A

Systole

32
Q

Relaxation

A

Diastole

33
Q

What is the 5 stages of the cardiac cycle

A

Total diastole
Atrial systole
Early ventricular systole
Late ventricular systole
Early ventricular diastole

34
Q

-Myocardium is completely relaxed
-blood passively fills chambers of the heart
-AV valves open and SL valves are closed

A

Total diastole

35
Q

-Contraction of atrial adds blood to ventricular volume
-130ml
-AV valves are open and SL valves are closed
-aortic pressure decreases as blood flows into systemic circuit

A

Atrial systole

36
Q

-Refered to as isovolumetric contraction phase
-ventricles contract and ventricular pressure increases
-AV valves close and produce S1 heart sound
-since all 4 valves are closed there is no change in ventricular volume

A

Early ventricular systole

37
Q

-Ventricular ejection phase
-ventricular pressure increases as SL valves open; AV valves remain closed
-blood is ejected into pulmonary trunk and aorta
-atria is relaxed

A

Late ventricular systole

38
Q

-The second phase of ventricular diastole
-ventricles continue to relax and pressure decreases
-When ventricular pressure decreases lower than atrial pressure AV valves opeen

A

Late ventricular diastole

39
Q

Normal heart sounds are produced by the closure of ___________ or __________

A

atrioventricular valves or semilunar valves

40
Q

First heart sound is produced by

A

AV valves

41
Q

Second heart sound is produced by

A

SL valves

42
Q

Illustrates the pressure within the atria, ventricles and aorta during the cardiac cycle

A

Wiggers diagram

43
Q

The amount of blood ejected by each ventricle per minute

A

Cardiac output

44
Q

Average Cardiac output of an adult

A

5L/min

45
Q

Both ______ and _______ can be regulated to control cardiac output

A

Heart rate and stroke rate

46
Q

Only part of the end of diastolic volume EDV is ejected

A

Ejection Fraction

Anaphy Finals (8 decks)

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