Question

The vermiform appendix is situated at the junction of-
A. Large intestine and small intestine
B. Small intestine and duodenum
C. Anus and Rectum
D. Stomach and duodenum

Answer 1

Based on the evolutionary evidence till now, scientists suggested that the vermiform appendix was used as an organ for digesting cellulose in plant foods and foliages. Vermiform appendix in humans was thought to work exactly like cecum which is presently found in herbivores for digesting plant leaves and cellulose present in them using bacteria residing inside it.

Complete answer:
Vermiform Appendix is a vestigial organ which is connected to the cecum of the large intestine which has lost its functions with time. But in our ancestral forms it served the purpose of digesting leaves and some other functions also. The vermiform appendix is also known as vermix or the cecal appendix. Caecum appears to be pouched like a structure. It is a blind ended tube which is connected to the cecum, at the junction of the large and small intestine. The appendix is usually located in the right lower quadrant of the abdomen, in close proximity to the right hip bone.

Hence, the correct option is option A i.e. large intestine and small intestine.

Additional Information: Appendicitis , a very common medical procedure that is related with inflammation of appendix.

Note: Vestigial organs are known to be remnants of organs which were complete as well as were functional in our ancestral species but have lost their function with time and became reduced during the course of evolution. Some of the other known examples of vestigial organs include rudimentary jaw in reptiles, vermiform appendix present in humans, etc.
Two vestigial organs found in humans: Tail bone (coccyx) and vermiform appendix.