Written Examination - Short Answer Questions (SAQ) - 1
Note :
1. In the examination appropriate
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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.
Embryology
1. Name four structures/tissue which develop from the mesoderm. (2)
2. What is prochordal plate? (1)
3. What is cardiogenic area? Where is it located in the trilaminar disc embryo? (2)
4. How does the coelomic cavity appear in the embryo? (1)
5. What is visceral and somatic mesoderm? (2)
6. What structures does ectoderm give rise to? (2)
7. Give your comments on this statement : "The organs of the digestive system develop from the endoderm". (2)
8. Which germ layer does the neural tube develop from? Describe its formation in brief. (3)
9. What is embryonic induction? Explain in brief with the example of the neural tube.
10. What is neural crest? (1)
11. Name two structures that develop from the neural crest.
12. What is shape of the early coelomic cavity? How does it develop into the separate coelomic cavities? (4)