Cardio Embryology

Question 1

Truncus Arterioles

gives rise to?

Answer 1

Ascending aorta and pulmonary trunk

come from what embryonic structure?

Question 2

Bulbs Cordis

gives rise to?

Answer 2

Smooth parts (outflow tract) of left and right ventricles
come from what embryonic structure?

Question 3

Endocardial Cushion

gives rise to?

Answer 3

Atrial septum, membranous inter ventricular septum; AV and semilunar valves
come from what embryonic structure?

Question 4

Primitive Atrium

gives rise to?

Answer 4

Trabeculated part of left and right atria

come from what embryonic structure?

Question 5

Primitive Ventricles

give rise to?

Answer 5

Trabeculated part of left and right ventricles

come from what embryonic structure?

Question 6

Primitive Pulmonary Vein

gives rise to?

Answer 6

Smooth part of left atrium

comes from what embryonic structure?

Question 7

Left Horn of Sinus Venosus

gives rise to?

Answer 7

Coronary sinus

comes from what embryonic structure?

Question 8

Right Horn of Sinus Venosus

gives rise to?

Answer 8

Smooth part of right atrium (sinus venarum)

comes from what embryonic structure?

Question 9

Right Common Cardinal Vein and Right Anterior Cardinal Vein

give rise to?

Answer 9

Superior Vena Cava

comes from what embryonic structure?

Question 10

The heart beats spontaneously

By how many weeks of development does the heart beat?

Answer 10

by 4 weeks

What happens by 4 weeks of development in regards to the heart?

Question 11

Defect in what protein can cause Dextrocardia?

Answer 11

This disease is due to a defect in left-right Dynein

Question 12

What disease state is Dextrocardia seen in?

Answer 12

This disease is commonly seen in Kartagener Syndrome (primary ciliary dyskinesia)

Question 13

Patent Foramen Ovale

Patent Foramen Ovale is caused by failure of what to fuse after birth?

Answer 13

Failure of fusion of septum primum and septum secundum

This results in what congenital heart defect after birth?

Question 14

Patent Foramen Ovale and ASD

What is one complication of a patent foramen ovale and ASD?

Answer 14

paradoxical emboli (venous thromboemboli that enter systemic arterial circulation
is a complication of what heart defects?

Question 15

Membranous Septum

What is the most common congenital cardiac anomaly?

Answer 15

Ventricular Septal Defect

Where does VSD usually occur?

Question 16

Transposition of Great Vessels
Tetralogy of Fallot
Persistent Truncus Arteriosus.
Conotruncal abnormalities are associated with what?

Answer 16

failure of neural crest cells to migrate

Failure of neural crest cells to migrate cause what issues with heart development?

Question 17

Allantois going to Urachus

gives rise to?

Answer 17

Median Umbilical Ligament

comes from what fetal structure?

Question 18

Ductus Arteriosus

gives rise to?

Answer 18

Ligamentum Arteriosum

comes from what fetal structure?

Question 19

Ductus Venosus

gives rise to?

Answer 19

Ligamentum Venosum

comes from what fetal structure?

Question 20

Foramen Ovale

gives rise to?

Answer 20

Fossa Ovalis

comes from what fetal structure?

Question 21

Umbilical Arteries

gives rise to?

Answer 21

Medial Umbilical Ligaments

come from what fetal structure?

Question 22

Umbilical Vein

gives rise to?

Answer 22

Ligamentum Teres Hepatis

comes from what fetal structure?

Question 23

Allantoic Duct

Urachus is part of the allantoic duct between what two structures?

Answer 23

Bladder and Umbilicus

The Urachus is found between the bladder and umbilicus as part of what structure?