Heart development- embryology

Question 1

The primordial ventricle is which ventricle?

Answer 1

The left

Question 2

What three things feed into sinus venosus?

Answer 2

Ant/Post cardinal veins
Vitelin vein
Umbilical vein

Question 3

Inside which tissue is the primordial heart formed?

Answer 3

Cardiogenic mesoderm

Question 4

What leads to the rise of the horseshoe tube heart?

Answer 4

Angioblasts that make an endothelial cord that canalizes during week 4

Question 5

The horseshoe heart does what to become a tubular organ?

Answer 5

During lateral folding, things go ventrally and medially and the lateral walls of the horseshoe heart fuse to make the tubular heart

Question 6

How does the heart start cranially to the oropharyngeal membrane and end caudal to it?

Answer 6

Cranial caudal folding

Question 7

What are the primitive chambers of the heart?

Answer 7

Sinus venosus
Primordial atrium
Primordial ventricle
Bulbus cordis (conus cordis and truncus arteriosis)
Aortic sac and pharyngeal arch arteries

Question 8

What is the flow of blood through the primordial heart?

Answer 8

Sinus venosus-primordial atrium-atrioventricular canal-left ventricle-interventricular foramen- right ventricle- conus cordis- trunks arteriosis- aortic sac- pharyngeal arch arteries- dorsal aortae