Embryology

Question 1

Primitive structure of the parietal layer of serous pericardium

Answer 1

Somatic mesoderm

Question 2

Primitive structure of the fibrous pericardium

Answer 2

Somatic mesoderm

Question 3

Primitive structure of the visceral layer of serous pericardium

Answer 3

Splanchnic mesoderm

Question 4

Primitive structure of the pericardial cavity

Answer 4

Intraembryonic coelom

Question 5

Primitive structure of the fossa ovalis

Answer 5

Foramen ovale

Question 6

Primitive structure of the ascending aorta

Answer 6

Truncus arteriosus

Question 7

Primitive structure of the pulmonary trunk

Answer 7

Truncus arteriosus

Question 8

Primitive structure of the right ventricle

Answer 8

Bulbus cordis

Question 9

Primitive structure of the Left ventricle

Answer 9

Primitive ventricle

Question 10

Primitive structure of the anterior portions of both the right and left atria, and the two auricles

Answer 10

Primitive atrium

Question 11

Primitive structure of the posterior portion of the right atrium, the SA node, coronary sinus, SVC

Answer 11

Sinus venosus

Question 12

Primitive structure of the common carotid artery

Answer 12

3rd aortic arch

Question 13

Primitive structure of the right subclavian artery

Answer 13

4th right aortic arch

Question 14

Primitive structure of the aortic arch

Answer 14

4th left aortic arch

Question 15

Primitive structure of the right pulmonary artery

Answer 15

6th right aortic arch

Question 16

Primitive structure of the left pulmonary artery and ductus arteriosus

Answer 16

6th left aortic arch

Question 17

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Answer 17

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Question 18

Primitive structure of the ligamentum venosum of liver

Answer 18

Ductus venosus

Question 19

Primitive structure of the ligamentum arteriosum between LPA and aorta

Answer 19

Ductus arteriosus

Question 20

Primitive structure of the medial umbilical ligaments of anterior abdominal wall

Answer 20

Umbilical arteries