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Thorax ~ Anatomy > Pericardium & Heart > Flashcards

Pericardium & Heart Flashcards

(62 cards)

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1
Q

Septum transversum is

A

Undivided part of Lateral mesoderm

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2
Q

Septum transversum contributes to →

A
  1. Central tendon of diaphragm
  2. Connective tissue of liver
  3. Fibrous Pericardium
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3
Q

Pericardium is;

A

FibroSerous Sac

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4
Q

Fibrous sac of pericardium is adherent to

A

Central tendon of diaphragm

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5
Q

Fibrous sac is derived from;

A

Septum transversum

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6
Q

Serous sac; derived from

A

Parietal layer → from Parietal layer of Lateral mesoderm

Visceral layer → from Splanchnic layer of Lateral mesoderm

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7
Q

Nerve supplying the Fibrous and Parietal layer of Pericardium;

A

Phrenic nerve

The pain in Pericarditis is mediated by Phrenic Nerve,
And referred pain to Tip of the Shoulder

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8
Q

Visceral layer of pericardium is supplied by (nerve)

A

Autonomic nervous system

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9
Q

Spaces in the Pericardium;

A

Transverse sinus and Oblique sinus

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10
Q

Boundaries of Transverse sinus;

Anteriorly -

Posteriorly -

Below -

A

Anteriorly - Pulmonary Trunk and Ascending Aorta

Posteriorly - Superior vena cava

Below - Left atrium

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11
Q

Boundaries of Oblique sinus;

Anteriorly -

Posteriorly -

On either side -

A

Anteriorly - Left atrium

Posteriorly - Parietal Pericardium

On either side - 2 Pairs of Pulmonary veins

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12
Q

Chamber of Heart which is in relation for both Transverse and Oblique sinus

A

Left atrium

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13
Q

Posterior surface of heart is formed by;

A

Right atrium 1/3

Left atrium 2/3

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14
Q

Diaphragmatic surface of heart is formed by;

A

Left ventricle 2/3

Right ventricle 1/3

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15
Q

Anterior surface of heart is formed by;

A
  • Right Ventricle 2/3
  • Left Ventricle 1/3
  • Right atrium
  • Right auricle
  • Left auricle
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16
Q

Right Border of heart formed by;

A

Right atrium

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17
Q

Left Border of heart formed by;

A

Left Ventricle - Mainly

Left atrium appendages - Slightly

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18
Q

Coronary arteries derived from

A

Aortic sinus

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19
Q

Left coronary artery arise from

A

Left posterior aortic sinus

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20
Q

Right coronary artery arise from

A

Anterior aortic sinus

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21
Q

Non coronary sinus is

A

Right Posterior Aortic Sinus

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22
Q

Branches of RCA;

A
  • Right Conus Artery
  • SA Nodal Artery
  • Right Marginal Artery / Acute Marginal Artery
  • PIVA → Septal branch
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23
Q

Right Conus Artery Supplies;

A

Infundibulum of Right Ventricle

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24
Q

Other name for Right Conus Artery;

A

3rd Coronary Artery

When it arise from Aortic sinus, then it is called as 3rd Coronary Artery

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25
What is Annulus of Vieussens
Is Anastomosis between Left Conus Artery and Right Conus Artery LCA → left conus artery RCA → right conus artery
26
SA Nodal artery is a branch of;
In 65% → branch of RCA In 35% → branch of LCX
27
SA node supplies;
It ascends between Aorta and Right Auricle, turns laterally and goes to SVC opening → SA NODE
28
Other name for Right Marginal Artery;
Acute Marginal Artery Follows inferior border upto Apex
29
PIVA supplies; And its Branch;
Diaphragmatic Surface of RV/LV Septal branch → supplies Post. 1/3 of IV Septum
30
Inverted course of Septal Branch (of PIVA) supplies;
AV Node
31
Branches of LCA;
AIVA and LCX
32
Septal branch of AIVA Supplies;
Anterior 2/3 of Interventricular septum
33
LCX anastomoses at Crux with
RCA
34
Branches of LCX
1. Supplies LA and LV 2. Left marginal artery / Obtuse marginal artery 3. SA Nodal artery in 35% 4. Atrial branch / Kugal’s artery
35
How Kugal’s anastomosis formed;
Kugal’s artery / Atrial branch of LCX anastomosis with Atrial branch of RCA
36
In Left Dominance, PIVA arise from
LCX In left dominance entire ventricle and entire Ventricular septum is supplied by LCA
37
In majority of cases PIVA arise from
RCA then it is called as Right Dominance
38
If Two PIVA arise from RCA and LCX, is called
Balanced dominance
39
The only part of Conducting system not supplied by RCA;
Right Bundle Branch It is supplied by only LCA
40
Location of SA Node;
1. Junction of SVC opening into Right atrium 2. Junction of Post. Smooth wall and Ant. Rough wall of Right atrium 3. Upper end of Crista terminalis
41
Location of AV node;
In Triangle of Koch
42
Right Bundle Branch is present in;
Moderator band / Supramarginal Trabeculae (Right ventricle)
43
Majority of blood from the heart is drained by
Coronary sinus
44
Coronary sinus; Derived from
Left horn of Sinus Venosus
45
Coronary sinus drains into
Posterior wall of Right atrium
46
Opening of Coronary sinus is Guarded by
Thebesian’s valve
47
Tributaries of Coronary Sinus;
1. Great Cardiac Vein 2. Middle Cardiac Vein 3. Small Cardiac Vein 4. Posterior vein of LV 5. Oblique vein of RA
48
Vein accompanying the AIVA and LCX artery
Great Cardiac Vein accompanies AIVA and LCX artery.
49
Vein accompanying the PIVA;
Middle Cardiac vein accompanies PIVA
50
Vein accompanying the Right Coronary Artery;
Small Cardiac Vein
51
Vein which open directly into Anterior wall of Right Atrium
Anterior Cardiac Vein
52
Which has Larger Diameter; RCA / LCA
LCA > RCA
53
Posterior Part of Right Atrium is; Derived from
Smooth part Derived from Sinus venosus
54
Anterior part of Right Atrium is Derived from
Rough part Derived from Primitive antrum
55
Crista terminalis is present between
Between Anterior (Rough) and Posterior (Smooth) Part of Right Atrium
56
Eustachian valve guards
IVC Opening
57
Valve guarding opening of Coronary Sinus
Thebesian valve
58
Boundaries of Triangle of Koch;
Base of Septal Leaflet Tendon of Todaro Coronary Sinus opening
59
Triangle of Koch Contains
AV Node
60
Fossa ovalis derived from
Septum primum, Floor of Fossa Ovalis is formed by Septum Primum
61
Limbus Fossa Ovalis derived from;
Septum secundum
62
Right Ventricle is divided into
Two Parts; 1. Inflow (Rough) - receives blood from Right Atrium 2. Outflow (Smooth) - also called as Conus (infundibulum) carried blood to Pulmonary trunk

Thorax ~ Anatomy (2 decks)

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