Cardiac embryology

Question 1

The ductus arteriosus is an embryonic derivative of which aortic/branchial arch?

Answer 1

6th

Question 2

what does the bulbis cordis give rise to?

Answer 2

forms the beginning of the ventricular outflow tract in the embryonic heart then gives rise to smooth portions of left and right ventricals adjacent to he aorta and pulmonary artery

Question 3

which structure receives blood from the sinus venosus in the embryonic heart?

Answer 3

primitive atria

Question 4

what is the sinus venous?

Answer 4

embryonic structure in the heart that receives blood from the venae cavae – in adults it gives rise to the smooth portion of the right atrium

Question 5

what branchial arch gives rise to the pulmonary arteries?

Answer 5

6th - also ductus arteriosus

Question 6

what branchial arch gives rise to the common corrotid?

Answer 6

3rd

Question 7

what branchial arch gives rise to the aortic arch

Answer 7

4th

Question 8

what branchial arch gives rise to the subclavian

Answer 8

4th