Embryo for anat exam

Question 1

Ligamentum arteriosum

Answer 1

Ductus arteriosus

Question 2

Coronary Sinus

Answer 2

Left Horn of Sinus Venosus

Question 3

Smooth portion of RA

Answer 3

Right Horn of Sinus Venosus

Question 4

Superior Vena Cava

Answer 4

Right Horn of Sinus Venosus and right Anterior and Common Cardinal Vein

Question 5

Smooth portion of LA

Answer 5

Pulmonary Veins

Question 6

Crista Terminalis

Answer 6

Right Valve of Right Horn

of Sinus Venosus

Question 7

Membranous Portion of IVS

Answer 7

Fusion of neural crest cells w. Endocardial Cushions

Question 8

Fossa Ovalis

Answer 8

septum primum and valve of the septum primum and valve of the septum secundum that fused

Question 9

Left side of atrial septum

Answer 9

Septum primum

Question 10

Area Around Fossa Ovalis/ right side of the atrial septum

Answer 10

Septum Secundum

Question 11

Aortic Pulmonary Septum

Answer 11

Neural Crest cells

Question 12

proximal aorta and pulmonary artery

Answer 12

bulbus cordis and truncus arteriosus

Question 13

Tetralogy of Fallot cause

Answer 13

problem with neural crest cells’ action; the aortico pulmonary septum doesn’t form

Question 14

seminular valves (aortic and pulm)

Answer 14

subendocardial mesenchyme

Question 15

valve of IVC and valve of coronary sinus

Answer 15

right valve of the right horn of the sinus venosus

Question 16

pulmonary artery and aorta

Answer 16

BC and TA

Question 17

origin of heart insides

Answer 17

endoderm