Which embryonic cardinal veins drain into the sinus venosus?
A.
anterior cardinal veins
B.
posterior cardinal veins
C.
common cardinal veins
2.
What is the region of the primitive heart tube that corresponds to the inflow?
3.
What is the region of the primitive heart tube that corresponds to the outflow?
4.
Which TWO structures does the truncus arteriosus split to form?
A.
descending aorta
B.
ascending aorta
C.
pulmonary vein
D.
pulmonary artery
5.
In what direction does normal looping of the heart tube take place?
A.
cranially
B.
left
C.
right
D.
caudally
6.
Which congenital heart defect will be observed if the heart loops in the opposite direction to it's normal folding pattern?
7.
Which congenital heart defect causes shunting of blood from the left atrium to the righ atrium as a result of a septum secundum abnormality?
8.
What is the name of the neuroepithelial cells derived from the neural folds that give rise to a vast array of tissues including endocardial cushion cells?
9.
When does the heart begin to develop in the embryo?
A.
week 5
B.
week 4
C.
Day 42
D.
week 3
10.
What is the name given to the horse-shoe formation that gives rise the the heart tube?
11.
At which point in the embryonic development does the heart tube structure form?
A.
week 4
B.
Day 6
C.
week 9
D.
week 5
12.
Which of the following is NOT a dilation of the primitive heart tube?
A.
sinus venosus
B.
ventricle
C.
yolk sac
D.
bulbus cordis
13.
At the end of which week does the heart begin to beat?
14.
In which atrium is the sinus venosus incorporated during differential growth of the heart tube?
A.
left atrium
B.
right atrium
15.
In foetal life, what is the opening present in the interatrial septum called?
16.
Name the TWO atrial septa that grow in a downward direction from the roof of the atria to form an overlapping valve
17.
In ventricular septation, which two tissues fuse to form the interventricular septum?
A.
the muscular portion
B.
chordae tendinae
C.
endocardial cushion tissue
D.
adipose tissue
18.
A lack of proliferation of endocardial cushion cells leads to which congenital heart defect?
