Short Answer Questions (SAQ)
Thorax - Embryology
Note :
1. In the examination appropriate
space will be provided for answering the questions. Here answer spaces are NOT
indicated because in HTML format, line breaks may appear depending on the
browser you use and the resolution of your monitor. This may be misleading.
2. Figures in brackets on the right indicate marks. In these samples some of the
mark figures are arbitrary. However, in general they indicate key facts /
statements / reasons expected in the answer.
3. It is advisable that you write your own answers
before checking the answers given here! The link to answers is at the bottom of
the page.
4. Remember : These questions are to help you understand, revise and practice.
In questions which are descriptive the answers will only serve as guidelines.
Questions :
1. Name the four chambers of the primitive embryonic heart. (2)
2. What is the fate of the sinus venosus? (2)
3. Name the two septa which separate the embryonic atrium and the openings in them. (4)
4. Name the septum which separates the aorta from the pulmonary artery. (1)
5. What are the parts of the interventricular septum? (1)
6. What kind of blood does the inferior vena cava receive in the foetus? Explain in brief. (2)
7. Explain in brief the function of the ductus venosus. What is its fate after birth? (2)
8. In foetal circulation, where does the blood go from the right atrium? (2)
9. What is the ductus arteriosus? What is its function? What is its fate after birth? (3)
10. How do the lungs begin their development in the embryo? How does it explain postnatal relationships? (2)