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Anatomy > Embryology: The Heart > Flashcards

Embryology: The Heart Flashcards

1
Q

What is the first major system to function in the embryo?

A

Cardiovascular System

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2
Q

What stimulates the early formation of the heart?

A

Inductive signals from the anterior endoderm

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3
Q

When does the partitioning of the atrioventricular canal, primordial atrium, ventricle, and outflow tract begin and end?

A

Begins around the 4th week and ends at the 8th week

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4
Q

When does the cardiovascular system begin to develop?

A

The end of the 3rd week

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5
Q

When does the primordial heart begin to beat?

A

Beginning of the 4th week

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6
Q

What are the three layers of heart cells (endocardium, myocardium & epicardium) derived from?

A

Splanchnic Mesoderm

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7
Q

What is the derivative of the 3rd aortic arch?

A

Common Carotid

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8
Q

What is the derivative of the 4th aortic arch?

A

Left Common Carotid to Left Subclavian

Right Subclavian

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9
Q

What is the derivative of the 6th aortic arch?

A

Left Pulmonary Artery

Right Pulmonary Artery

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10
Q

What are the moat common congenital anomalies of the heart and great vessels?

A

Patent Oval Formation

Patent Ductus Arteriosus

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11
Q

What are the 5 primitive chambers of the heart?

A 
Truncus Arteriosus
Bulbus Cordis
Primitive Ventricle
Primitive Atrium
Sinus Venosus
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12
Q

What is the derivative of the truncus arteriosus?

A

Pulmonary Trunk and Aorta

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13
Q

What is the derivative of the bulbus cordis?

A

Smooth part of Right and Left Ventricles.

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14
Q

What is the derivative of the primitive ventricle?

A

Rough part of the Right and Left Ventricles

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15
Q

What is the derivative of the primitive atrium?

A

Right and Left Auricles

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16
Q

What is the derivative of the sinus venous?

A

Coronary Sinus and part of the Right Atrum

17
Q

What are the four features of Fallot’s tetralogy?

A

Overriding Aorta
Pulmonary Stenosis
VSD
Hypertrophy of right ventricle

18
Q

What is patent ductus arteriosus?

A

Neonate’s ductus arteriosus fails to close after birth

Anatomy (41 decks)

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