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ESA 3 - Respiratory > Session 1.2i - Gray's Anatomy for Students - Thorax - Regional anatomy - Mediastinum (Part II) > Flashcards

Session 1.2i - Gray's Anatomy for Students - Thorax - Regional anatomy - Mediastinum (Part II) Flashcards

1
Q

What does the right ventricle form in the heart?

A

In the anatomical position, it forms

  • most of the anterior surface of the heart
  • a portion of the diaphragmatic surface
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2
Q

What is the orientation of the right atrium?

A

To the right of the right ventricle

The right ventricle is located in front of and to the left of the right atrioventricular orifice

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3
Q

What direction does blood entering the right ventricle from the right atrium move in?

A

A horizontal and forward direction (due to the anatomical position of the right ventricle and right atrium)

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4
Q

What does the outflow tract of the right ventricle lead to?

A

The pulmonary trunk

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5
Q

What is the outflow tract of the right ventricle, which leads to the pulmonary trunk, known as?

A

The CONUS ARTERIOSUS (INFUNDIBULUM)

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6
Q

What is the conus arteriosus also known as?

A

INFUNDIBULUM

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7
Q

What is the infundibulum also known as?

A

CONUS ARTERIOSUS

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8
Q

Describe the walls of the infundibulum.

A

This area has smooth walls

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9
Q

Where is the infundibulum derived from?

A

The embryonic bulbus cordis.

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10
Q

What is found on the walls of the inflow portion of the right ventricle?

A

Numerous muscular, irregular structures

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11
Q

What are the structures found on the walls of the inflow portion of the right ventricle called?

A

TRABECULAE CARNEAE (Fig. 3.64)

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12
Q

What are the trabeculae carneae?

A

Numerous muscular, irregular structures found on the inflow portion of the right ventricle (Fig. 3.64).

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13
Q

How are the trabeculae carneae attached to the ventricular walls?

A

Most of these are either attached to the ventricular walls
- throughout their length; forming ridges
or
- attached at both ends; forming bridges

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14
Q

What are the trabeculae carneae which only have one end attached to the ventricular surface called?

A

PAPILLARY MUSCLES

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15
Q

What are papillary muscles?

A

Trabeculae carneae which only have one end attached to the ventricular surface, while the other end serves as the point of attachment for the chordae tendineae.

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16
Q

One end of the trabeculae carneae attaches to the ventricular surface. What does the other end attach to?

A

The other end serves as the point of attachment for the chordae tendineae.

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17
Q

What are the chordae tendineae?

A

Tendon-like fibrous cords

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18
Q

Where are the chordae tendineae found?

A

At the free edges of the cusps of the tricuspid valve.

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19
Q

What are the tendon-like fibrous cords found at the edges of the tricuspid valve called?

A

CHORDAE TENDINEAE

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20
Q

How many papillary muscles are there in the right ventricle?

A

Three

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21
Q

How are the papillary muscles named?

A

Relative to their point of origin on the ventricular surface

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22
Q

What are the 3 papillary muscles in the right ventricle called?

A
  • ANTERIOR
  • POSTERIOR
  • SEPTAL
    PAPILLARY MUSCLE
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23
Q

Describe the anterior papillary muscle.

A

It is the largest and most constant papillary muscle

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24
Q

Where does the anterior papillary muscle arise?

A

From the anterior wall of the ventricle

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25
Q

Describe the posterior papillary muscle.

A

This may consist of one, two, or three structures, with some chordae tendineae arising directly from the ventricular wall.

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26
Q

Describe the septal papillary muscle.

A

This is the most inconsistent papillary muscle, being either small or absent, with chordae tendineae emerging directly from the septal wall.

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27
Q

What papillary muscle is the largest?

A

Anterior papillary muscle

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28
Q

Which papillary muscle is the most constant?

A

Anterior papillary muscle

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29
Q

Which papillary muscle consists of 1-3 structures?

A

Posterior papillary muscle

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30
Q

Which papillary muscle is the most inconsistent, being either small or absent?

A

Septal papillary muscle

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31
Q

What is the septomarginal trabecula?

A

A single specialised trabeculum (a band of connective tissue)

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32
Q

What is the septomarginal trabecula also known as?

A

MODERATOR BAND

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33
Q

What is the moderator band also known as?

A

The SEPTOMARGINAL TRABECULA

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34
Q

Where does the septomarginal trabecula lie?

A

Forms a bridge between the lower portion of the INTERVENTRICULAR SEPTUM and the base of the anterior papillary muscle.

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35
Q

What does the septomarginal trabecula carry?

A

A portion of the cardiac conduction system

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36
Q

What portion of the cardiac conduction system does the septomarginal trabecula carry?

A

The right bundle of the atrioventricular bundle

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37
Q

Where does the septomarginal trabecula carry the right bundle of the AV bundle to?

A

The anterior wall of the right ventricle

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38
Q

What closes the right atrioventricular orifice during ventricular contraction?

A

TRICUSPID VALVE (RIGHT ATRIOVENTRICULAR VALVE)

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39
Q

What does the tricuspid valve do?

A

Closes the right AV orifice during ventricular contraction.

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40
Q

What is the tricuspid valve also known as?

A

RIGHT ATRIOVENTRICULAR VALVE

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41
Q

What is the right atrioventricular valve also known as?

A

TRICUSPID VALVE

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42
Q

Why is the tricuspid valve so named?

A

Because it usually consists of three cusps or leaflets (Fig. 3.64).

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43
Q

What is the base of each tricuspid valve cusp secured to?

A

The fibrous ring that surrounds the atrioventricular orifice.

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44
Q

What does the fibrous ring that surrounds the AV orifice do?

A

Helps to maintain the shape of the opening.

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45
Q

Where are the cusps of the tricuspid valve continuous with each other?

A

Near their bases at sites termed COMMISSURES

Google IMG: commissures heart

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46
Q

How are the tricuspid valve cusps named?

A

Based on their relative position in the right ventricle

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47
Q

What are the cusps of the tricuspid valve called?

A

ANTERIOR,
SEPTAL and
POSTERIOR CUSPS

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48
Q

What are the free margins of the tricuspid valve cusps attached to?

A

The chordae tendineae

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49
Q

Where do the chordae tendineae arise from?

A

The tips of the papillary muscles

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50
Q

When is the tricuspid valve open?

A

During filling of the right ventricle

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51
Q

During filling of the right ventricle, the tricuspid valve is ____

A

Open

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52
Q

Where do the cusps of the tricuspid valve project into when the tricuspid valve is open?

A

The three cusps project into the right ventricle.

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53
Q

Why do we need a compensating mechanism for the tricuspid valves?

A

Without the presence of a compoensating mechanism, when the ventricular musculature contracts, the valve cusps would be forced upward with the flow of blood and blood would move back into the right atrium.

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54
Q

How is blood flow prevented from moving back into the right atrium upon ventricular contraction?

A

Contraction of the papillary muscles attached to the cusps of the tricuspid valves by chordae tendineae prevents the cusps from being everted into the right atrium.

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55
Q

What is the function of the papillary muscles and associated chordae tendineae?

A

To keep the valves closed during the dramatic changes in ventricular size that occur during ventricular contraction (preventing backflow from the right ventricle into the right atrium).

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56
Q

Chordae tendinae from how many papillary muscles attach to each cusp?

A

Two papillary muscles

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57
Q

Why is it important chordae tendinae from two papillary muscles attach to each cusp?

A

This helps prevent separation of the cusps during ventricular contraction.

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58
Q

Why is it essential to have proper closing of the tricuspid valve?

A

This causes blood to exit the right ventricle and move into the pulmonary trunk.

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59
Q

What is the infundibulum?

A

The outflow tract of the right ventricle

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60
Q

What is found at the apex of the infundibulum?

A

The PULMONARY VALVE (Fig. 3.64)

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61
Q

What does the pulmonary valve separate>

A

The apex of the infundibulum (outflow tract of right ventricle) and the opening into the pulmonary trunk.

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62
Q

What does the pulmonary valve consist of?

A

Three SEMILUNAR CUSPS

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63
Q

Where do the free edges of the semilunar cusps (of the pulmonary valve) project into?

A

Upward into the lumen of the pulmonary trunk

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64
Q

What does the free superior edge of each semilunar cusp (pulmonary valve) have?

A

The NODULE OF THE SEMILUNAR CUSP and the LUNULA OF THE SEMILUNAR CUSP (Fig. 3.65).

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65
Q

Where is the nodule of the semilunar cusp found?

A

The free superior edge of the semilunar cusp (pulmonary valve)

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66
Q

Where is the lunula of the semilunar cusp?

A

The free superior edge of the semilunar cusp (pulmonary valve)

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67
Q

Describe the nodule of the semilunar cusp.

A

The middle, thickened portion of the superior edge of the semilunar cusp (Fig. 3.65)

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68
Q

Describe the lunula of the semilunar cusp.

A

The thin lateral portion of the superior edge of the semilunar cusp (Fig. 3.65).

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69
Q

What is the middle thickened portion of the superior edge of the semilunar cusp on the tricuspid valve called?

A

NODULE OF THE SEMILUNAR CUSP

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70
Q

What is the thin lateral portion of the superior edge of the semilunar cusp on the tricuspid valve called?

A

LUNULA OF THE SEMILUNAR CUSP

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71
Q

What are the 3 cusps of the pulmonary valve called?

A

LEFT,
RIGHT and
ANTERIOR SEMILUNAR CUSPS

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72
Q

How are the semilunar cusps of the pulmonary valve named?

A

Relative to their foetal position before rotation of the outflow tracts from the ventricles is complete.

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73
Q

What does each cusp of the pulmonary valve form?

A

A pocket-like sinus (Fig. 3.65) - a dilation in the wall of the initial portion of the pulmonary trunk.

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74
Q

What are the pocket-like sinuses formed by the pulmonary valve called?

A

PULMONARY SINUSES

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75
Q

What happens to the pulmonary sinuses after ventricular contraction?

A

After ventricular contraction, the recoil of blood fills these PULMONARY SINUSES and forces the cusps closed.

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76
Q

What is the function of the pulmonary sinuses?

A

Recoil of blood fills these sinuses and forces the cusps closed, after ventricular contraction. This prevents blood in the pulmonary trunk from refilling the right ventricle.

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77
Q

What does the left atrium form?

A

Most of the base or posterior surface of the heart

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78
Q

How is the left atrium derived?

A

As with the right atrium, the left atrium is derived embryologically from two structures.

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79
Q

What does the posterior half, or inflow portion, of the left atrium receive?

A

The four pulmonary veins (Fig. 3.66).

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80
Q

The four pulmonary veins enter the left atrium where?

A

In the posterior half, or inflow portion.

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81
Q

Describe the walls of the inflow portion (posterior half) of the left atrium,

A

Smooth-walled

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82
Q

What is the posterior half of the left atrium derived from?

A

The proximal parts of the pulmonary veins that are incorporated into the left atrium during development.

83
Q

What is the anterior half of the left atrium continuous with?

A

The left auricle

84
Q

What does the anterior half of the left atrium contain?

A

Musculi pectinati

85
Q

Where is the anterior half of the left atrium derived from?

A

The embryonic primitive atrium

86
Q

What separates the two components of the left atrium?

A

Unlike the crista terminalis in the right atrium, no distinct structure separates the two components of the left atrium.

87
Q

What is the interatrial septum part of?

A

The anterior wall of the left atrium.

88
Q

What is the thin area or depression in the interatrial septum?

A

The valve of the foramen ovale

89
Q

Where is the valve of the foramen ovale located?

A

The thin area or depression in the interatrial septum, opposite the floor of the fossa ovalis in the right atrium

90
Q

What is opposite the floor of the fossa ovalis in the right atrium?

A

Valve of the foramen ovale

91
Q

What does the valve of the foramen ovale do during development?

A

Prevents blood from passing from the left atrium to the right atrium

92
Q

What prevents blood from passing from the left atrium to the right atrium during development?

A

The VALVE OF THE FORAMEN OVALE

93
Q

What occurs if the valve of the foramen ovale is not completely fused in the adult?

A

This leaves a “probe patent” passage between the right atrium and the left atrium.

94
Q

What causes a “probe patent” passage between the right atrium and the left atrium of the heart?

A

When the valve of the foramen ovale is not completely fused in some adults.

95
Q

Where does the left ventricle lie?

A

Anterior to the left atrium.

96
Q

What does the left ventricle contribute to?

A

The anterior, diaphragmatic, and left pulmonary surfaces of the heart, and forms the apex.

97
Q

How does blood enter the left ventricle?

A

Through the LEFT ATRIOVENTRICULAR ORIFICE

98
Q

Where does blood flow in the left ventricle?

A

It flows in a forward direction to the apex

99
Q

Describe the structure of the left ventricle.

A

The chamber itself is conical, is longer than the right ventricle, and has the thickest layer of MYOCARDIUM.

100
Q

Which ventricle is longer?

A

The left ventricle is longer than the right ventricle.

101
Q

Which chamber of the heart has the thickest layer of myocardium?

A

The left ventricle

102
Q

The left ventricle has the thickest layer of what?

A

MYOCARDIUM (muscular tissue of the heart)

103
Q

What is the outflow tract of the left ventricle known as?

A

The AORTIC VESTIBULE

104
Q

What is the aortic vestibule?

A

The outflow tract of the left ventricle

105
Q

Where is the aortic vestibule?

A

Posterior to the infundibulum of the right ventricle

106
Q

Describe the walls of the aortic vestibule

A

Smooth-walled

107
Q

Where is the aortic vestibule (outflow tract of left ventricle) derived from?

A

From the embryonic bulbus cordis

108
Q

Describe the trabeculae carneae in the left ventricle.

A

These are fine and delicate (in contrast to those in the right ventricle).

109
Q

What is the general appearance of the trabeculae carneae in the left ventricle.

A

The general appearance of the trabeculae with muscular ridges and bridges is similar to that of the right ventricle (Fig. 3.67).

110
Q

What is observed together with the chordae tendineae?

A

Papillary muscles

111
Q

What is the structure of the papillary muscles in the left ventricle?

A

Papillary muscles, together with chordae tendineae, are also observed and their structure is the same as the right ventricle.

112
Q

How many papillary muscles are usually found in the left ventricle?

A

Two - ANTERIOR and POSTERIOR PAPILLARY MUSCLES

113
Q

Describe the papillary muscles of the left ventricle.

A

They [anterior and posterior papillary muscles] are larger than those of the right ventricle

114
Q

Where is the location of the left ventricle in relation to the rest of the heart?

A

In the anatomical position, the left ventricle is somewhat posterior to the right ventricle.

115
Q

The interventricular septum forms what?

A

The anterior wall and some of the wall on the right side of the left ventricle.

116
Q

The interventricular septum is described as having ___ parts: _______

A

Two: a MUSCULAR PART and a MEMBRANOUS PART

117
Q

Which part of the interventricular septum is thick, and which is thin?

A

Muscular part - thick

Membranous part - thin

118
Q

What forms the major part of the interventricular septum?

A

The muscular part

119
Q

What forms the upper part of the interventricular septum?

A

Membranous part

120
Q

Sometimes a third part of the interventricular septum is considered an atrioventricular part. Why?

A

Because of its position above the septal cusp of the tricuspid valve.

121
Q

Where is the position of the ‘atrioventricular’ part of the interventricular septum?

A

It has a superior location which places this part of the septum between the left ventricle and right atrium.

122
Q

Where does the left atrioventricular orifice open into?

A

The posterior right side of the superior part of the left ventricle.

123
Q

When is the left atrioventricular orifice closed?

A

During ventricular contraction

124
Q

What closes the left atrioventricular orifice?

A

The MITRAL VALVE (LEFT ATRIOVENTRICULAR VALVE)

125
Q

What is the mitral valve otherwise known as?

A

The LEFT ATRIOVENTRICULAR VALVE or bicuspid valve

126
Q

What is the left atrioventricular valve otherwise known as?

A

MITRAL VALVE or bicuspid valve

127
Q

What are the left and right atrioventricular valves also known as?

A

Left - MITRAL (bicuspid) valve

Right - TRICUSPID valve

128
Q

What is the bicuspid valve otherwise known as?

A

The MITRAL VALVE or LEFT ATRIOVENTRICULAR VALVE

129
Q

Why is the mitral valve also referred to as the bicuspid valve?

A

Because it has two cusps

130
Q

What are the cusps of the mitral valve?

A

(Two cusps; bicuspid valve) ANTERIOR and POSTERIOR CUSPS (Fig. 3.67)

131
Q

What are the bases of the mitral valve cusps secured to?

A

A fibrous ring surrounding the opening

132
Q

Where are the mitral valve cusps continuous with each other?

A

At the commissures.

133
Q

How do the mitral valve cusps stay closed?

A

The coordinated action of the papillary muscles and chordae tendineae is as described for the right ventricle.

134
Q

What is the aortic vestibule, or outflow tract of the left ventricle continuous with?

A

Continuous superiorly with the ascending aorta

135
Q

What is the ascending aorta continuous with inferiorly?

A

The aortic vestibule (left ventricular outflow tract)

136
Q

What closes the opening from the left ventricle into the aorta?

A

The AORTIC VALVE

137
Q

What does the aortic valve separate?

A

The opening from the left ventricle into the aorta

138
Q

What structure is the aortic valve similar to?

A

It is similar in structure to the pulmonary valve

139
Q

What does the aortic valve consist of?

A

Three SEMILUNAR CUSPS

140
Q

What is the orientation of the semilunar cusps in the aortic valve?

A

The free edge of each projects upwards into the lumen of the ascending aorta (Fig. 3.68).

141
Q

What is found between the semilunar cusps and the wall of the ascending aorta?

A

Pocket-like sinuses

142
Q

What are the pocket-like sinuses of the aortic valve known as?

A

The RIGHT, LEFT and POSTERIOR AORTIC SINUSES

143
Q

Where do the right and left coronary arteries originate from?

A

The right and left aortic sinuses

144
Q

What are the posterior aortic sinus and cusp sometimes referred to as?

A

The NONCORONARY SINUS AND CUSP

145
Q

What is the noncoronary sinus and cusp?

A

The posterior aortic sinus and cusp.

146
Q

Why is the posterior aortic sinus and cusp so named?

A

The right and left coronary arteries originate from the right and left aortic sinuses. Because of this, the posterior aortic sinus and cusp are sometimes referred to as the NONCORONARY SINUS AND CUSP.

147
Q

What is the function of the aortic valve?

A

The functioning of the aortic valve is similar to that of the pulmonary valve

148
Q

What is different about the aortic and pulmonary valve function?

A

The functioning of the aortic valve is similar to that of the pulmonary valve with one important additional process: as blood recoils after ventricular contraction and fills the aortic sinuses, it is automatically forced into the coronary arteries because these vessels originate from the right and left aortic sinuses.

149
Q

After blood recoils after ventricular contraction and fills the aortic sinuses of the aortic valve, what happens?

A

Unlike the pulmonary valves, instead of going straight to the ascending aorta [pulmonary trunk in pulmonary valve] the left and right aortic sinuses is forced into the coronary arteries because they originate from the left and right aortic sinuses.

150
Q

What is the cardiac skeleton?

A

A collection of dense, fibrous connective tissue in the form of four rings with interconnecting areas in a plane between the atria and the ventricles.

151
Q

What sort of tissue is the cardiac skeleton?

A

Dense, fibrous connective tissue

152
Q

What structure does the cardiac skeleton contain?

A

Four rings that are interconnected between the atria and ventricles.

153
Q

What do the four rings of the cardiac skeleton surround?

A

The two atrioventricular orifices, the aortic orifice and opening of the pulmonary trunks.

154
Q

What are the four rings of the cardiac skeleton known as?

A

The ANULUS FIBROSUS

155
Q

What do the interconnecting areas of the cardiac skeleton include?

A
  • RIGHT FIBROUS TRIGONE

- LEFT FIBROUS TRIGONE

156
Q

What are the right and left fibrous trigones?

A

Thickened areas of connective tissue

157
Q

Where is the right fibrous trigone?

A

Between the aortic ring and right atrioventricular ring

158
Q

Where is the left fibrous trigone?

A

Between the aortic ring and left atrioventricular ring (Fig. 3.69)

159
Q

What does the cardiac skeleton do?

A
  • Helps maintain the integrity of the openings it surrounds
  • Provides points of attachment for the cusps
  • Separates atrial musculature from the ventricular musculature
  • Serves as a dense connective tissue partition that electrically isolates the atria from the ventricles
160
Q

What does the cardiac skeleton help maintain?

A

The integrity of the openings it surrounds

161
Q

What does the cardiac skeleton provide for the cusps?

A

Points of attachments for the cusps

162
Q

What does the cardiac skeleton separate?

A

The atrial musculature from the ventricular musculature

163
Q

Where does the atrial myocardium originate?

A

From the upper border of the atrioventricular rings

164
Q

Where does the ventricular myocardium originate?

A

From the lower border of the atrioventricular rings

165
Q

What does the cardiac skeleton do electrically?

A

Serves as a dense connective tissue partition that electrically isolates the atria from the ventricles.

166
Q

Where does the atrioventricular bundle pass?

A

Through the anulus

167
Q

What is the only connection between the atrial and ventricular myocardium?

A

Atrioventricular bundle

168
Q

Where do the two coronary arteries arise?

A

From the aortic sinuses in the initial portion of the ascending aorta

169
Q

What do the coronary arteries supply?

A

The muscle and other tissues of the heart

170
Q

Where do the coronary arteries circle the heart?

A

In the coronary sulcus

171
Q

What are the branches of the coronary arteries?

A
  • Marginal

- Interventricular

172
Q

Where do the marginal and interventricular branches of the coronary arteries lie?

A

In the interventricular sulci

173
Q

Where do the margin and interventricular branches of the coronary arteries converge to?

A

Toward the apex of the heart (Fig. 3.70).

174
Q

Where does the returning venous blood pass through?

A

Cardiac veins

175
Q

Where do most cardiac veins empty into?

A

The coronary sinus

176
Q

What is the coronary sinus?

A

A large venous structure that is located in the coronary sulcus

177
Q

Where is the coronary sinus found?

A

In the coronary sulcus

178
Q

Where is the coronary sulcus?

A

On the posterior surface of the heart between the left/right atrium and left/right ventricle.

179
Q

Where does the coronary sinus empty into?

A

The right atrium

180
Q

Where in the right atrium does the right coronary sinus empty into?

A

Between the opening of the inferior vena cava and the right atrioventricular orifice.

181
Q

Where does the right coronary artery originate from?

A

The right aortic sinus of the ascending aorta.

182
Q

Where does the right coronary artery travel?

A

It passes anteriorly from the ascending aorta and then descends vertically in the coronary sulcus, between the right atrium and right ventricle (Fig. 3.71A).

183
Q

Where is the right coronary artery located?

A

Anterior and vertical to the ascending aorta

184
Q

Where does the right coronary artery lie?

A

In the coronary sulcus

185
Q

What does the coronary artery do once it reaches the inferior margin of the heart?

A

It turns posteriorly and continues in the sulcus onto the diaphragmatic surface and base of the heart.

186
Q

What happens before the right coronary artery reaches the diaphragmatic surface and base of the heart?

A

During this course, several branches arise from the main stem of the vessel.

187
Q

Name the major branches the right coronary artery gives off.

A
  • ATRIAL BRANCH (subsequently, SINU-ATRIAL NODAL BRANCH)
  • RIGHT MARGINAL BRANCH
  • POSTERIOR INTERVENTRICULAR BRANCH
188
Q

What is the first major branch of the right coronary artery?

A

An early ATRIAL BRANCH

189
Q

Where does the early atrial branch of the right coronary artery pass?

A

In the groove between the right auricle and ascending aorta

190
Q

What does the early atrial branch of the right coronary artery give off?

A

The SINU-ATRIAL NODAL BRANCH (Fig. 3.71A)

191
Q

Where does the sinu-atrial nodal branch of the right coronary artery pass?

A

Posteriorly around the superior vena cava

192
Q

What does the sinu-atrial nodal branch of the right coronary artery supply?

A

The sinu-atrial node.

193
Q

What branch is given off as the right coronary artery approaches the inferior (acute) margin of the heart?

A

A RIGHT MARGINAL BRANCH

194
Q

Where does the right marginal branch from the right coronary artery?

A

It comes off the right coronary artery as it approaches the inferior (acute) margin of the heart (Fig. 3.71A,B)

195
Q

What is the inferior margin of the heart also known as?

A

Acute

196
Q

What is the acute margin of the heart also known as?

A

Inferior

197
Q

Where does the right coronary artery travel?

A

It continues along the inferior (acute) border of the heart towards the apex of the heart.

198
Q

As the right coronary artery continues on the base/diaphragmatic surface of the heart, it supplies a small branch to what?

A

The atrioventricular node

199
Q

What is the base of the heart also known as?

A

The diaphragmatic surface

200
Q

What is the last major branch of the right coronary artery?

A

The POSTERIOR INTERVENTRICULAR BRANCH (Fig. 3.71A)

201
Q

What gives off the posterior interventricular branch of right coronary artery?

A

A small branch to the atrioventricular node from the right coronary artery.

202
Q

Where does the posterior interventricular branch of right coronary artery lie?

A

In the posterior interventricular sulcus

203
Q

What does the right coronary artery supply?

A
  • Right atrium
  • Right ventricle
  • Sinu-atrial node (SAN)
  • Atrioventricular node (AVN)
  • Interatrial septum
  • Portion of the left atrium
  • Posteroinferior 1/3 of the interventricular septum
  • Portion of posterior part of left ventricle

ESA 3 - Respiratory (28 decks)

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