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Adult Echocardiography > Cardiac Anatomy > Flashcards

Cardiac Anatomy Flashcards

1
Q

What day of gestation is the primitive heart tube formed?

A

by day 23

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2
Q

What part of the heart tube forms the atria?

A

Primitive atria / Sino-atrium

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3
Q

What part of the heart tube forms the LV?

A

Primitive ventricle

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4
Q

What part of the heart tube forms the RV and Truncus Arteriosus?

A

Bulbus Cordis

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5
Q

What does the Truncus Arteriosus form?

A

Ao and PA

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6
Q

What does Sinus Venosus form?

A

2 horns that form SVC, IVC and atrial floor

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7
Q

What do the Endocardial Cushions form?

A

IAS, IVS and atrioventricular valves (MV, TV)

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8
Q

By what day GA does the heart start beating

A

Day 28

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9
Q

What side (R or L) pressures are higher in the fetus and why?

A

Right side because the lungs haven’t expanded/aren’t in use

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10
Q

What is the function of the Ductus Arteriosus in fetal circulation?

A

Bypasses fetal lungs by connecting pulmonary trunk to the aortic arch

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11
Q

What ligament does the Ductus Arteriosus become after it closes?

A

Ligamentum Arteriosum

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12
Q

What is the function of Ductus Venosus in fetal circulation?

A

Bypasses fetal liver by connecting umbilical vein to IVC

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13
Q

What ligament does the Ductus Venosus become after birth?

A

Ligamentum Venosum

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14
Q

What is the function of the Foramen Ovale in fetal circulation?

A

Bypasses fetal lungs through an opening between the RA and LA

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15
Q

What valve in the RA directs flow through the foramen ovale in a fetus?

A

Eustachian Valve

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16
Q

Which is the first shunt from fetal circulation to close after birth? The last?

A

Ductus Arteriosus (1st)
Foramen Ovale (last)

17
Q

Does the MV have a septal pap muscle?

A

No

18
Q

Does the TV have a septal pap muscle

A

Yes

19
Q

Is the RV or LV more trabeculated?

A

RV

20
Q

Is a moderator band seen in the RV or LV?

A

RV

21
Q

Where does the coronary sinus receive blood from?

A

Collects deoxygenated blood from the coronary arteries and drains venous blood from the myocardium

22
Q

What valve controls the opening between the coronary sinus and the RA?

A

Thebesian Valve

23
Q

What are the 3 main tribituaries of the coronary sinus?

A

Great, Middle and Small Cardiac Veins

24
Q

What are the layers of the heart wall from innermost to outermost

A

Endo, Myo Epi, Peri

Adult Echocardiography (10 decks)

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