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HEART > Vessels of the heart > Flashcards

Vessels of the heart Flashcards

1
Q

What is the heart enclosed in?

A

Pericardial sac

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2
Q

What are the 2 layers of the pericardial sac?

A

Fibrous layer

Serous pericardial layer

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3
Q

How many layers of Serous pericardial layer?

A

Parietal- lines pericardium

Visceral- lines the heart

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4
Q

What does the Fibrous pericardium layer surround?

A

surrounds both layers

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5
Q

What does Serous layer provide?

A

lubrication by mesothelial cells so heart can move

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6
Q

What is the Crista Terminalis ?

A

a ridge that separates Rough and smooth muscle (Sinus Venarum) in Right atrium

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7
Q

What does the RIGHT coronary artery branch into?

A

Right marginal artery down apex of heart

Right circumflex artery- posteriorly round back of heart

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8
Q

What does the right circumflex artery branch into?

A

Posterior interventricular artery

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9
Q

What does the LEFT coronary artery branch into?

A

Circumflex artery- posterior of heart

Anterior interventricular artery- down interven. groove to apex

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10
Q

What is the 1st branch at Aorta aorta?

A

Brachiocephalic trunk

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11
Q

What is the 2nd branch at Aorta Arch

A

Left Common Carotid Artery

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12
Q

What is the 3rd branch at Aorta Arch?

A

Left Subclavian Artery

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13
Q

What does the Brachiocephalic trunk split into?

A

Right Subclavian artery - blood to right upper limb

Right common carotid artery- blood to head

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14
Q

What does the Right/Left Subclavian veins drain blood from Upper limbs into?

A

right/Left Brachiocephalic veins

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15
Q

What does the Right/Left Internal and External Jugular veins drain blood from head into?

A

right/Left Brachiocephalic veins

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16
Q

What does Brachiocephalic and Azygous veins form?

A

Superior vena cava

17
Q

What are the 3 main structures of the heart?

A

Endocardium- internal
Myocardium- middle
Epicardium- outer

18
Q

Where does right atrium receive blood from?

A

Inferior vena cava
Superior vena cava
Coronary Sinus

19
Q

What is the Fossa Ovalis?

A

intra-atrial septum has depression hole in heart

20
Q

What does right ventricle lead into?

A

Pulmonary trunk

21
Q

What is pulmonary trunk bordered by?

A

Muscular ridge called Supraventricular crest

22
Q

What are irregular muscular projections in right ventr.?

A

Trabeculae carnae

23
Q

What does the chordae tendinae do ?

A

Attach valves to Papillary muscles

24
Q

What does the Left atrium have which overlaps pulmonary trunk?

A

Muscular Auricle with Pectinate muscles

25
Q

How many pulmonary veins enter atrium?

A

4

Inferior/Superior left and right pulmonary veins

26
Q

Where does left ventricle receive blood from?

A

Mitral Valve

27
Q

Where does the Thoracic Aorta descend through?

A

Thorax in posterior mediastinum

also passes via diaphragm at T12

HEART (11 decks)

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