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Heart Anatomy And Pnumothorax > Heart Anatomy > Flashcards

Heart Anatomy Flashcards

1
Q

Where is the position of the heart in the chest?

A

In the thorax between the lungs, lies between ribs 2-5 to the left of the midline

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2
Q

Where does the apex of the heart lie?

A

In the 5th intercostal space in the mid clavicular line

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3
Q

What are the 2 pericardium’s of the heart?

A

Fibrous and Serous

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4
Q

What is the function of the fibrous pericardium?

A

Prevents overfilling of the heart and anchors it in position

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5
Q

What are the two layers of the serous pericardium?

A

Parietals and visceral

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6
Q

What is the function of the serious pericardium and pericardial cavity?

A

Prevents friction

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7
Q

What are the three layers of the heart?

A

Endocardium, myocardium and epicardium

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8
Q

What is the function of the vena cava?

A

Allow deoxygenated blood flow into the heart

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9
Q

What is the function of the aorta?

A

Allow oxygenated blood to flow from the heart to tissues

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10
Q

What is the purpose of the fibrous skeleton?

A

Separates the different chambers of the heart and encircles the great vessels

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11
Q

What are the two AV valves?

A

Tricuspid and Bicuspid

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12
Q

What are the two types of semi lunar valves?

A

Pulmonary and aortic

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13
Q

What anchors the AV valves to the papillary muscles?

A

Chordae tendinea

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14
Q

What is the role of the AV valves and papillary muscles?

A

Contraction of papillary muscles prevents eversion of the valves and thus back flow of blood into the atria

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15
Q

How much blood does the heart receive per minute?

A

250ml

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16
Q

What does the left coronary artery bifurcate into?

A

The circumflex artery and the left anterior descending artery

17
Q

What does the right coronary artery bifurcate into?

A

marginal artery and posterior descending branch

18
Q

What vein is the marginal branch accompanied by?

A

Small cardiac vein

19
Q

What vein is the left anterior descending artery accompanied by?

A

Great cardiac vein

20
Q

Which vein does the posterior descending artery accompany?

A

The middle cardiac vein

21
Q

What is the final stage of the conducting system?

A

The purkinje fibres

22
Q

What is the role of the foremen ovale?

A

Allows blood to bypass the right ventricle and pulmonary system

23
Q

What is the role of the ductus arteriosus?

A

Connects the pulmonary trunk to the arch of the aorta, bypasses the pulmonary system and left side of the heart

24
Q

What is the role of the ductus venosus?

A

Connects the umbilical vein to the inferior vena cava so the blood bypasses the liver

Heart Anatomy And Pnumothorax (10 decks)

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