CVS embryology quiz

Question 1

Name the different component parts of the primitive heart tube from arterial to venous end

Question 2

Which veins drain into the sinus venosus?

Question 3

Which parts of the heart tube are responsible for the formation of the cardiac loop?

Question 4

Define foramen ovale

Question 5

Give the reason for the closure of the foramen ovale at birth.

Question 6

Give 2 reasons for the non-closure of the foramen ovale at birth

Question 7

What are the two septa that develop during the partition of the primordial atrium?

Question 8

Which maternal infection (acquired during pregnancy) can often be associated with congenital heart defects?

Question 9

Which embryonic structures form the membranous part of the interventricular septum?

Question 10

Which vessel connects the pulmonary artery with the aorta in the foetal circulation?

Question 11

What is the fate of the above vessel after birth?

Question 12

What is the function of the above vessel in the foetal circulation?

Question 13

How many pairs of aortic arches (arteries) develop in the embryo?

Question 14

From which part of the primitive heart tube is the aorta and the pulmonary trunk derived?

Question 15

What is dextrocardia? What causes this?

Question 16

Why is it so important for the human heart to develop early and begin functioning within the developing embryo?

Question 17

State one (1) adult structure that develops from each of 1-5 above:

Question 18

Label the diagram below showing interatrial septal development at week 5.

Question 19

Label the diagram below showing interventricular septal development at week 7