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Flashcards in embryology Deck (12)
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1
Q

What are the 5 parts of the primitive heart (superior to inferior)?

A
truncus arteriosus
bulbus cordis
primative ventricle
primative atrium
sinus venosis
2
Q

What does the truncus arteriosus give rise to?

A

ascending aorta and the pulmonary trunk

3
Q

What does the bulbus cordis give rise to?

A

distal bulbus cordus:
outflow tracts of ventricles

proximal bulbus cordis:
right ventricle

4
Q

What does the primative ventricle give rise to?

A

left ventricle

5
Q

What does the primative atrium give rise to?

A

rough parts of right and left atrium

6
Q

What does the sinus venosus give rise to?

A

sinus venarum

7
Q

What 3 structures make up the ventricular septum?

A

muscular portion:
- ventricle muscles

membranous:

  • endocardial cushions
  • trunco-conal septum
8
Q

What makes up the floor of the fossa ovalis? the limbus fossa ovalis?

A

septum primum

septum secundum

9
Q

What creates the AV valves?

A

endocardial cushions

10
Q

What does the left common cardinal become?

A

coronary sinus

11
Q

What is precardinal anastomosis?

A

The act of the left precardinal vein anastomosing with the right precardinal vein forming the L. brachiocephalic vein

12
Q

What creates the ductus venosus?

A

left umbilical vein and the the right vitelline vein