Thoracic Cavity II Flashcards

1
Q

Superior vena cava pierces the fibrous pericardium at the level of this

A

Transverse thoracic plane

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2
Q

Contents of the superior mediastinum (6)

A

Esophagus
Trachea
Arch of aorta
Brachiocephalic vein
Thymus
thoracic duct

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3
Q

Obstruction in this structure causes bilateral face, neck, and upper limb edema

A

Superior vena cava

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4
Q

Obstruction of this structure results in unilateral edema of face and the arm

A

Brachiocephalic veins

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5
Q

Recurrent laryngeal nerves pass in this

A

Tracheo-esophageal groove

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6
Q

Structure that passes in the tracheo-esophageal groove

A

Recurrent laryngeal nerve

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7
Q

Right recurrent laryngeal nerve hooks around this

A

Right subclavian artery

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8
Q

Left recurrent laryngeal nerve hooks around this

A

Ligamentum arteriosum and the arch of aorta

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9
Q

Nerve that provides parasympathetic fibers to thoracic viscera and passes posterior to the lung root

A

Vagus nerve

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10
Q

Anterior and posterior vagal trunks enter the abdomen through this

A

Esophageal hiatus in the diaphragm

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11
Q

Recurrent laryngeal nerve that hooks around the subclavian artery

A

Right

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12
Q

Recurrent laryngeal nerve that hooks around the ligamentum arteriosum and arch of aorta

A

Left

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13
Q

Nerve that passes anterior to the root of the lungs

A

Phrenic nerve

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14
Q

Double layered membrane that covers the heart and beginning of its great vessels

A

Pericardium

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15
Q

Pericardium component that is a tough external layer

A

Fibrous pericardium

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16
Q

Component that lines the internal surface of the fibrous pericardium

A

Parietal layer

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17
Q

2 layers of the serous pericardium

A

Parietal layer
Visceral layer

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18
Q

Artery of the parietal layer of the heart

A

Pericardiacophrenic artery

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19
Q

Pericardiacophrenic artery is a branch of

A

Internal thoracic artery

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20
Q

Artery that accompanies the phrenic nerve in the parietal layer of pericardium

A

Pericardiacophrenic artery

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21
Q

Pericardiacophrenic artery accompanies this structure in the pericardium

A

Phrenic nerve

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22
Q

Venous drainage of the parietal layer of pericardium

A

Pericardiacophrenic veins

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23
Q

Pericardiacophrenic veins are tributaries of this

A

Brachiocephalic vein (or internal thoracic)

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24
Q

Nerve supply to the parietal layer of the serous pericardium

A

Phrenic nerves (C3-C5)

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25
Q

Pericardium layer that forms the epicardium

A

Visceral layer

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26
Q

Serous pericardium layer that receives the same supply as the heart

A

Visceral layer

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27
Q

Arterial supply to visceral layer of serous pericardium

A

Coronary arteries

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28
Q

Venous supply to visceral layer of serous pericardium

A

Coronary sinus

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29
Q

Nervous supply to visceral layer of serous pericardium

A

Autonomic nerves

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30
Q

Potential space between the layers of the parietal and visceral layers of serous pericardium

A

Pericardial cavity

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31
Q

The pericardial cavity is the potential space between these two layers

A

Parietal and visceral layers of the serous pericardium

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32
Q

Transverse passage within the pericardial cavity

A

Transverse sinus

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33
Q

The transverse sinus is within this

A

Pericardial cavity

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34
Q

Anterior boundary of transverse sinus (2)

A

Pulmonary trunk and ascending aorta

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35
Q

Posterior boundary of the transverse sinus

A

Superior vena cavity

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36
Q

Recess in the pericardial cavity

A

Oblique sinus

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37
Q

Oblique sinus is found in this

A

Pericardial cavity

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38
Q

The oblique sinus is bound anteriorly by this

A

Left atrium

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39
Q

The oblique sinus is bound posteriorly by this

A

Pericardium overlying the anterior aspect of the esophagus

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40
Q

Sinus that is bound anteriorly by the pulmonary trunk and ascending aorta, and posteriorly by the SVC

A

Transverse sinus

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41
Q

Sinus that is bound anteriorly by the left atrium and posteriorly by pericardium overlying the anterior aspect of the esophagus

A

Oblique sinus

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42
Q

3 layers of each heart chamber, from superficial to deep

A

Endocardium
Myocardium
Epicardium

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43
Q

Most superficial layer of each heart chamber

A

Endocardium

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44
Q

Middle layer of each heart chamber

A

Myocardium

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45
Q

Deepest layer of each heart chamber

A

Epicardium

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46
Q

Heart chamber layer that is composed of endothelium and sub-endothelial connective tissue
Lining membrane of the heart and valves

A

Endocardium

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47
Q

Heart chamber layer that is composed of cardiac muscle

A

Myocardium

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48
Q

Heart chamber layer that is composed of mesothelium
Visceral layer of serous pericardium

A

Epicardium

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49
Q

Endocardium is composed of this type of tissue

A

Endothelium and sub-endothelial connective tissue

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50
Q

Myocardium is composed of this type of tissue

A

Cardiac muscle

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51
Q

Epicardium is composed of this type of tissue

A

Mesothelium

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52
Q

Apex of the heart is located here

A

5th intercostal space

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53
Q

Apex of the heart is formed by this

A

Left ventricle

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54
Q

Base of the heart is formed mainly by this

A

Left atrium

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55
Q

Esophagus lies immediately posterior to this

A

Base of the heart

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56
Q

Major branch off the 1st segment of the right coronary artery

A

Right marginal artery

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57
Q

Major branches off the 2nd segment of the right coronary artery (2)

A

AV nodal
Posterior interventricular

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58
Q

Major arteries of the heart (4)

A

Right coronary
Left circumflex
Ventricular branch
Left anterior descending

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59
Q

Small cardiac vein runs with the artery

A

Right coronary artery (marginal artery)

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60
Q

2 major arteries off the aorta

A

Right and left coronary arteries

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61
Q

Artery off the aorta that runs under the pulmonary trunk

A

Left coronary artery

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62
Q

3 branches of the left coronary artery

A

Left circumflex
Ventricular branch
Left anterior descending

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63
Q

The right marginal artery, AV nodal and posterior interventricular arteries arise from this

A

Right coronary artery

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64
Q

Venous drainage to all of the heart

A

Coronary sinus

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65
Q

Small, middle, and great cardiac veins are tributaries to this

A

Coronary sinus

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66
Q

The great cardiac vein runs with this artery

A

Anterior descending interventricular (LAD)

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67
Q

Right coronary artery (marginal artery) runs with this vein

A

Small cardiac vein

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68
Q

Anterior descending interventricular (LAD) artery runs with this vein

A

Great cardiac vein

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69
Q

Middle cardiac vein runs with this artery

A

Posterior interventricular artery

70
Q

Posterior interventricular artery runs with this vein

A

middle cardiac vein

71
Q

AV node sits in the bottom of this part of the heart

A

Right atrium

72
Q

Muscles in the right atrium

A

Pectinate muscles

73
Q

Content of the right atrium that is the border between the pectinate muscles and smooth surface of the sinus venarum

A

Cristal terminalis

74
Q

Sinus in the right atrium that receives blood from the superior and inferior vena cavae

A

Sinus venarum

75
Q

Sinus venarum receives blood from these

A

Superior and inferior vena cavae

76
Q

Depression in the right atrium that is a remnant of a foramen

A

Fossa ovalis

77
Q

The right atrium has the opening to this sinus

A

Coronary sinus

78
Q

The cusp of this valve is in the right ventricle

A

Tricuspid valve

79
Q

The cusp of the tricuspid valve is in this heart chamber

A

Right ventricle

80
Q

The pectinate muscles are in this heart chamber

A

Right atrium

81
Q

The crista terminalis is in this heart chamber

A

Right atrium

82
Q

The sinus venarum is in this heart chamber

A

Right atrium

83
Q

The fossa ovalis is in this heart chamber

A

Right atrium

84
Q

The opening of the coronary sinus is in this heart chamber

A

Right atrium

85
Q

Fibrous strands that connect the papillary muscles to the mitral valve leaflets in the heart

A

Chordae tendineae

86
Q

Muscles in the right ventricle

A

Papillary muscles

87
Q

Muscles that pull on the chordae tendineae when the myocardium contracts

A

Papillary muscles

88
Q

The papillary muscles pull on these when the myocardium contracts

A

Chordae tendineae

89
Q

Structure that connects the right ventricle to the pulmonary artery and trunk

A

Infundibulum

90
Q

The cusp of the tricuspid valve is in this heart chamber

A

Right ventricle

91
Q

The chordae tenindeae is in this heart chamber

A

Right ventricle

92
Q

The papillary muscles are in this heart chamber

A

Right ventricle

93
Q

The infundibulum is in this heart chamber

A

Right ventricle

94
Q

The septomarginal trabeculae is in this heart chamber

A

Right ventricle

95
Q

Structure that carries the right branch of the AV bundle and coordinates contraction

A

Septomarginal trabeculae

96
Q

Front of triangle of koch

A

Septal cusp of tricuspid valve

97
Q

Behind the triangle of koch

A

Opening of coronary sinus

98
Q

Above the triangle of koch

A

Tendon of Todaro

99
Q

The triangle of koch is in this heart chamber

A

Right atrium

100
Q

Triangle of koch contains this important structure

A

Atrioventricular node (AVN)

101
Q

The atrioventricular node (AVN) can be found here

A

Triangle of Koch

102
Q

Structure in the inferior part of the atrial septum of right atrium

A

Triangle of Koch

103
Q

Parasympathetic fibers to the heart are carried by this nerve

A

Vagus nerve

104
Q

Stimulation of vagus nerve (parasympathetic fibers) to the heart causes this

A

Bradycardia

105
Q

Sympathetic fibers for the heart come from this

A

T1-5 segments of the spinal cord

106
Q

Stimulation of sympathetic fibers to the heart (T1-5 spinal cord segments) cause this

A

Tachycardia

107
Q

Pain (visceral afferent) fibers from the heart travel via this route

A

Sympathetics to T1-5 spinal segments

108
Q

Sympathetics pain has referred pain to these 2 locations

A

Left precordium (chest) and medial margins of the left upper limb

109
Q

Is bradycardia associated with dilation or constriction of coronary arteries?

A

Constriction

110
Q

Is tachycardia associated with dilation or constriction of coronary arteries?

A

Dilation

111
Q

The esophagus commences of the lower border of this

A

Cricoid cartilage (C6)

112
Q

The esophagus passes through the esophageal hiatus of the diaphragm at the level of this

A

T10

113
Q

Contents of both superior and posterior mediastinum (2)

A

Esophagus
(is behind the trachea and the left atrium)
Thoracic duct

114
Q

Pharyngeo-esophageal constriction is due to this

A

Inferior pharyngeal constrictor (C6)

115
Q

Thoracic constriction is due to these (2)

A

Due to aorta arch (T4) and left main bronchus (T6)

116
Q

Diaphragmatic constriction is due to this

A

Esophageal hiatus (T10)

117
Q

The azygos vein enter the thorax through this

A

Aortic hiatus

118
Q

Azygos vein drains these posterior intercostal veins directly

A

Right 5th to 11th

119
Q

The right 5th to 11th posterior intercostal veins are directly drained by this

A

Azygos vein

120
Q

The azygos vein drains these posterior intercostal veins via the superior intercostal vein

A

Right 2nd to 4th

121
Q

The azygos vein drains the right 2nd to 4th posterior intercostal veins via this

A

Right superior intercostal vein

122
Q

Vein that arches and joins the superior vena cava at the level of the transverse thoracic plane

A

Azygos vein

123
Q

The azygos vein arches and joins the SVC at the level of this

A

Transverse thoracic plane

124
Q

The hemiazygos veins enter the thorax by piercing this

A

Left crus of the diaphragm

125
Q

The hemiazygos vein drains the left 9th to 11th posterior intercostal veins and then joins this vein

A

Azygos vein

126
Q

The hemiazygos vein drains these posterior intercostal veins and joins the azygos vein

A

Left 9th to 11th

127
Q

The left 9th to 11th posterior intercostal veins are drained by this

A

Hemiazygos vein

128
Q

The accessory hemiazygos vein drains these posterior intercostal veins and joins the azygos vein

A

Left 5th to 8th

129
Q

The left 5th to 8th posterior intercostal veins are drained by this

A

Accessory hemiazygos vein

130
Q

1st posterior intercostal veins from both sides drain into this

A

Brachiocephalic veins

131
Q

2nd to 4th posterior intercostal veins from both sides drain into this

A

Superior intercostal veins

132
Q

Right superior intercostal vein drains here

A

Azygos vein

133
Q

Left superior intercostal vein drains here

A

Brachiocephalic vein

134
Q

Thoracic duct originates in the abdomen at this

A

Cistema chyli (L1)

135
Q

Thoracic duct enters the thorax through this

A

Aortic hiatus in the diaphragm

136
Q

The thoracic duct lies between these 2 arterial and venous structures

A

Descending thoracic aorta and azygos vein

137
Q

Thoracic duct terminates here

A

Left venous angle

138
Q

The left venous angle is the junction between these veins

A

Left internal jugular and left subclavian veins

139
Q

The junction of the left internal jugular and left subclavian veins forms this

A

Left venous angle

140
Q

White rami communicantes are present in these spinal segments

A

T1 through L2

141
Q

White rami communicantes contain these types of fibers (2)

A

Sensory and preganglionic motor fibers

142
Q

Communicantes present in T1 through L2 spinal segments

A

White rami communicantes

143
Q

Communicantes that contain sensory fibers and preganglionic motor fibers

A

White rami communicantes

144
Q

Gray rami communicantes are present in these spinal segments

A

All

145
Q

Gray rami communicantes contain these types of fibers

A

Postganglionic motor fibers

146
Q

Communicantes present in all spinal segments

A

Gray rami communicantes

147
Q

Communicantes that contain postganglionic motor fibers

A

Gray rami communicantes

148
Q

Medial branches from the sympathetic ganglia that contain sensory (pain) fibers and preganglionic motor fibers

A

Splanchnic nerves

149
Q

The splanchnic nerves are medial branches from this

A

Sympathetic ganglia

150
Q

Splanchnic nerves contain these 2 types of fibers

A

Sensory (pain) and preganglionic motor fibers

151
Q

Other name for sympathetic ganglia

A

Paravertebral ganglia

152
Q

Type of ganglia that sits close to the organs

A

Prevertebral ganglia

153
Q

Connect the sympathetic (paravertebral) ganglia to the spinal nerves (ventral rami)

A

Gray and white rami communicantes

154
Q

Parasympathetic nervous supply to the mediastinum

A

Vagus nerve

155
Q

The right and left vagus nerves form anterior and posterior vagal trunks prior to descending through this

A

Esophageal hiatus in the diaphragm

156
Q

Anterior vagal trunk contains mainly fibers from this

A

Left vagus nerve

157
Q

Posterior vagal trunk contains mainly fibers from this

A

Right vagus nerve

158
Q

Sympathetic supply to the mediastinum

A

Thoracic sympathetic trunks

159
Q

Cell bodies from lateral grey horns in thoracic and lumbar regions that supply sympathetic innervation to the mediastinum

A

Thoracic sympathetic trunks

160
Q

Thoracic sympathetic trunks enter the sympathetic chain ganglia via this

A

White rami communicantes

161
Q

Thoracic sympathetic trunks leave sympathetic chain ganglia to re-enter spinal nerves via this

A

Gray rami communicantes

162
Q

Thoracic sympathetic trunks leave sympathetic chain ganglia to travel to abdomen via this

A

Splanchnic nerves

163
Q

Thoracic ganglia that supply postganglionic neurons to heart, aorta, lungs, and esophagus

A

1-5

164
Q

Thoracic ganglia that supply preganglionics to abdominal viscera via splanchnic nerves which synpase with postganglionics in abdominal ganglia

A

5-12

165
Q

Ganglion formed from the synapse of thoracic ganglia 5-9 and the greater splanchnic nerve

A

Celiac ganglion

166
Q

Celiac ganglion is associated with this nerve and this ganglia

A

Greater splanchnic nerve
5-9th thoracic ganglia

167
Q

Ganglion formed from the synapse of 10th and 11th thoracic ganglia and lesser splanchnic nerve

A

Aorticorenal ganglion

168
Q

Aorticorenal ganglion is associated with this nerve and ganglia

A

Lesser splanchnic nerve
10-11th thoracic ganglia

169
Q

Ganglion formed from the synapse of the 12th thoracic ganglia and least splanchnic nerve

A

Prevertebral ganglion

170
Q

Prevertebral ganglion is associated with this nerve and ganglia

A

Least splanchnic nerve
12th thoracic ganglia