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From Flashcardlet > 2 A&P II Lab Exercise 3 > Flashcards

2 A&P II Lab Exercise 3 Flashcards

1
Q

What does the atrium receive?

A

Blood from veins draining the entire body

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2
Q

What does the left atrium receive?

A

Blood from veins draining from the lungs

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3
Q

Where does the right ventricle pump to?

A

Lungs

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4
Q

Where does the left ventricle pump to?

A

All parts of the body

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5
Q

What does the arrangement of the cells in cardiac tissue allow the heart to do?

A

Beat in synchrony

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6
Q

What are the five types of blood vessels?

A

Arteries arterioles capillaries venules veins

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7
Q

How can you tell arteries from veins in a cross section?

A

Arteries are round and thick. Veins are thin and collapsed

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8
Q

What is the pericardium?

A

Double walled membrane surrounding the heart

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9
Q

What is the fibrous pericardium?

A

Tough, dense connective tissue; anchors and protects the heart

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10
Q

What is the serous pericardium?

A

Two layered, thin serous membrane

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11
Q

What are the layers of the serous pericardium?

A

Parietal and visceral

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12
Q

What is the parietal layer?

A

Lines the fibrous epicardium

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13
Q

What is the visceral layer?

A

Covers the outer surface of the heart

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14
Q

What is the pericardial cavity?

A

Fluid filled space between the parietal and visceral layers

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15
Q

What are the layers of the pericardium?

A

Fibrous and serous

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16
Q

What is the epicardium?

A

The outer layer, the visceral layer of the serous pericardium; thin squamous epithelium and connective tissue

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17
Q

What is the myocardium?

A

The middle layer of the heart; bulk is cardiac muscle tissue arranged in spirals or circular bundles; connective tissue fibers connect muscle fibers

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18
Q

What is the endocardium?

A

The inner layer; a layer of simple squamous epithelium (endothelium) lying on a thin layer of connective tissue

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19
Q

Where does the right atrium receive blood through?

A

SVC, IVC, coronary sinus

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20
Q

Does the right atrium receive oxygenated or deoxygenated blood?

A

Deoxygenated blood

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21
Q

Where are auricles found?

A

Externally on the atrial wall

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22
Q

Where are pectinate muscles found?

A

They form ridges in the atrial wall

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23
Q

What do the auricles do?

A

Increase the surface area

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24
Q

What separates the atria?

A

Interatrial septum

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25
Q

Does the left atrium receive oxygenated or deoxygenated blood?

A

Oxygenated

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26
Q

Where does the left atrium receive blood through?

A

Four pulmonary veins

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27
Q

What chamber comprises the majority of the anterior part of the heart?

A

Right ventricle

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28
Q

Where are trabeculae carnae located?

A

Muscular ridges in the ventricular walls

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29
Q

Where does the right ventricle pump to?

A

Pulmonary trunk

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30
Q

Where does the left ventricle pump to?

A

Aorta

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31
Q

What does the superior vena cava do?

A

Brings deoxygenated blood to the right atrium from regions above the diaphragm

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32
Q

What does the inferior vena cava do?

A

Brings deoxygenated blood tot he right atrium from areas below the diaphragm

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33
Q

What does the coronary sinus do?

A

Collects blood from the heart muscle and enters the right atrium

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34
Q

What does the pulmonary trunk do?

A

Carries deoxygenated blood from the right ventricle towards the lungs

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35
Q

What does the pulmonary trunk divide into?

A

Right pulmonary artery and left pulmonary artery

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36
Q

Where do the right and left pulmonary artery travel to?

A

The right and left lungs, respectively

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37
Q

What does the aorta do?

A

The largest blood vessel of the body carries oxygenated blood from the left ventricle to the body

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38
Q

Where does the aorta ascend out of?

A

The left ventricle, then it arches and descends

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39
Q

What does the aorta branch into?

A

Brachiocephalic artery, left common carotid artery, and the left subclavian artery

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40
Q

What do the left and right coronary arteries do?

A

Their branches supply other arteries, arterioles, and the capillary bed of the heart muscle itself

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41
Q

Where do the left and right coronary arteries arise from?

A

Base of the aorta

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42
Q

What do the cardiac veins do?

A

Bring blood from the capillary bed of the myocardium to the coronary sinus and from there to the right atrium

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43
Q

Where is the tricuspid valve?

A

The atrioventricular valve between the right atrium and ventricle

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44
Q

How do the papillary muscles and chordae tendineae control the valves?

A

Contraction of the papillary muscles puts tension on the chordae tendineae keeping the cusps from inverting into the atrium

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45
Q

Where is the bicuspid valve?

A

The atrioventricular valve between the left atrium and ventricle

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46
Q

What is another name for the mitral valve?

A

Bicuspid

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47
Q

Where is the pulmonary valve?

A

The base of the pulmonary trunk

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48
Q

Where is the aortic valve?

A

The base of the aorta

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49
Q

What are heart sounds associated with?

A

The closing of the heart valves

50
Q

Where is the sinoatrial node?

A

The right atrial wall inferior to the entrance of the SVC

51
Q

What does the SA node do?

A

Sets the rate of the heartbeat, 75 beats per minute

52
Q

Where is the atrioventricular node?

A

Located in the inferior part of the interatrial septum just above the tricuspid valve

53
Q

What does the AV node do?

A

Receives the impulse from the SA node and transmits it to the AV bundle

54
Q

Where is the AV bundle located?

A

In the inferior part of the interatrial septum

55
Q

What does the AV bundle do?

A

It is the only electrical connection between the atria and the ventricles

56
Q

Where are the AV bundle branches?

A

Split off from the bundle of His and travel down the interventricular septum to the apex of the heart

57
Q

What do the purkinje fibers do?

A

Fibers coming from the bundle branches carry the impulse around the apex of the heart and into the ventricular walls

58
Q

1

A

Superior vena cava

59
Q

2

A

Right atrium

60
Q

3

A

Inferior vena cava

61
Q

4

A

Descending aorta

62
Q

5

A

Left atrium

63
Q

6

A

Pulmonary veins

64
Q

7

A

Left pulmonary artery

65
Q

8

A

Aortic arch

66
Q

9

A

Superior vena cava

67
Q

10

A

Right pulmonary artery

68
Q

11

A

Right pulmonary veins

69
Q

12

A

Right atrium

70
Q

13

A

Tricuspid valve

71
Q

14

A

Right ventricle

72
Q

15

A

Chordae tendineae

73
Q

16

A

Inferior vena cava

74
Q

17

A

Papillary muscles

75
Q

18

A

Descending aorta

76
Q

19

A

Left ventricle

77
Q

20

A

Bicuspid valve

78
Q

21

A

Left pulmonary veins

79
Q

22

A

Left atrium

80
Q

23

A

Left pulmonary artery

81
Q

24

A

Pulmonary valve

82
Q

25

A

Aortic valve

83
Q

26

A

Aortic arch

84
Q

27

A

Left subclavian artery

85
Q

28

A

Left common carotid artery

86
Q

29

A

Brachiocephalic artery

87
Q

30

A

Pectinate muslces

88
Q

31

A

Trabeculae carnae

89
Q

Conduction 24

A

Sinoatrial node

90
Q

Conduction 25

A

Internodal pathway

91
Q

Conduction 26

A

Atrioventricular node

92
Q

Conduction 27

A

AV bundle

93
Q

Conduction 28

A

Right and left bundle branches

94
Q

Conduction 29

A

Purkinje fibers

95
Q

Anterior 1

A

Right coronary artery

96
Q

Anterior 2

A

Anterior coronary veins

97
Q

Anterior 22

A

Marginal artery

98
Q

Anterior 3

A

Left coronary artery

99
Q

Anterior 4

A

Circumflex artery

100
Q

Anterior 5

A

Left anterior descending branch

101
Q

Anterior 6

A

Great cardiac vein

102
Q

Posterior 7

A

Circumflex branch

103
Q

Posterior 8

A

Great cardiac vein

104
Q

Posterior 9

A

Coronary sinus

105
Q

Posterior 10

A

Posterior descending artery

106
Q

Posterior 11

A

Right coronary artery

107
Q

What is an artery’s structure related to?

A

Carrying blood uder pressure

108
Q

How many layers do blood vessels have?

A

Three tunics

109
Q

What is the outermost layer called?

A

Tunica adventitia or externa

110
Q

What is the tunica externa composed of?

A

Collagen fibers in a loose arrangement

111
Q

What is the middle layer called?

A

Tunica media

112
Q

What is the tunica media composed of?

A

Smooth muscle arranged circularly around the vessel

113
Q

What else might be present in the tunica media depending on the size of the artery?

A

Elastic fibers

114
Q

What is the third layer called?

A

Tunica interma

115
Q

What is the tunica intima composed of?

A

Endothelial lining and a layer of elastic fibers called the internal elastic membrane

116
Q

What is the thickest layer of an artery?

A

Tunica media

117
Q

What is the thickest layer of a vein?

A

Tunica adventitia/externa

118
Q

How is the tunica media different in veins?

A

Has much less smooth muscle and elastin

119
Q

What do capillaries consist of?

A

Simple squamous endothelium and its basement membrane

120
Q

What do capillaries lack?

A

Muscle fibers

From Flashcardlet (133 decks)

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