Thorax: Cardiac Embryology

Question 1

Event: materialization of the cardiogenic region

Answer 1

Wn: 3rd week
Who: lateral plate mesoderm
Wh: angiogenic cell clusters form in a U-shaped arrangement around the neural plate

Question 2

Event: Heart Tube Formation

Answer 2

Wn:
Who:
Wh:

Question 3

endocardial tubes

Answer 3

Arises from:
Gives Rise to:
Stage:

Question 4

dorsal aortae

Answer 4

arises from: angiogenic cluster tube
def: medial aspect of split structure
gives rise to:

Question 5

primary heart tube

Answer 5

Arises from:
Gives Rise to:
Stage:

Question 6

Event: Heart Tube Folding

Answer 6

Wn:
Who:
Wh:

Question 7

sinus venosus

Answer 7

Arises from:
Gives Rise to:
Stage:

Question 8

primitive atrium

Answer 8

Arises from:
Gives Rise to:
Stage:

Question 9

atrioventricular sulcus

Answer 9

Arises from:
Gives Rise to:
Stage:

Question 10

primitive ventricle

Answer 10

Arises from:
Gives Rise to:
Stage:

Question 11

interventricular sulcus

Answer 11

Arises from:
Gives Rise to:
Stage:

Question 12

bulbus cordis

Answer 12

Arises from:
Gives Rise to:
Stage:

Question 13

conus cordis

Answer 13

Arises from:
Gives Rise to:
Stage:

Question 14

truncus arteriosus

Answer 14

Arises from:
Gives Rise to:
Stage:

Question 15

Event: Cardiac Tube Looping

Answer 15

Wn:
Who:
Wh:

Question 16

tranverse pericardial sinus

Answer 16

Arises from:
Gives Rise to:
Stage:

Question 17

Event: Shifting of the AV Canal

Answer 17

Wn:
Who:
Wh:

Question 18

endocardial cushions

Answer 18

Arises from:
Gives Rise to:
Stage:

Question 19

neural crest cells

Answer 19

Arises from:
Gives Rise to:
Stage:

Question 20

Event: Atrial Partitioning

Answer 20

Wn:
Who:
Wh:

Question 21

septum primum

Answer 21

Arises from:
Gives Rise to:
Stage:

Question 22

ostium primum

Answer 22

Arises from:
Gives Rise to:
Stage:

Question 23

ostium secundum

Answer 23

Arises from:
Gives Rise to:
Stage:

Question 24

septum secundum

Answer 24

Arises from:
Gives Rise to:
Stage:

Question 25

foramen ovale

Answer 25

Arises from:
Gives Rise to:
Stage:

Question 26

Event: Partitioning of Ventricles

Answer 26

Wn:
Who:
Wh:

Question 27

muscular component of the interventricular septum

Answer 27

Arises from:
Gives Rise to:
Stage:

Question 28

membranous part of the interventricular septum

Answer 28

Arises from:
Gives Rise to:
Stage:

Question 29

Event: Division of Outflow Tract

Answer 29

Wn:
Who:
Wh:

Question 30

truncoconal ridges

Answer 30

Arises from:
Gives Rise to:
Stage:

Question 31

aortico-pulmonary (spiral) septum

Answer 31

Arises from:
Gives Rise to:
Stage:

Question 32

Event: Aortic Arch Formation

Answer 32

Wn:
Who:
Wh:

Question 33

Event: Formation of Ductus Venosus

Answer 33

Wn:
Who:
Wh:

Question 34

Event: Formation of the Great Veins

Answer 34

Wn:
Who:
Wh:

Question 35

Event: Formation of Venous Drainage

Answer 35

Wn:
Who:
Wh:

Question 36

Event: Development of Lymphatics

Answer 36

Wn:
Who:
Wh:

Question 37

inflow tract

Answer 37

sinus venosus

Question 38

outflow tract

Answer 38

ductus ateriosus

Question 39

what cells signal endocardial cushion formation?

Answer 39

neural crest cells

Question 40

transposition of great vessels

Answer 40

presentation:
diagnostics:
etiology: failure of aortiocupulmonary septum to spiral properly to form the aorta/ great veins

Question 41

patent ductus arteriosus

Answer 41

presentation:
diagnostics:
etiology: