1

This question already has an answer here:

In the following sentence

The hippocampus plays an important role in the formation of emotion and memory consolidation.

my teacher pointed out that article The in front of the word hippocampus is incorrect, and A should be used instead. As in

A hippocampus plays an important role in the formation of emotion and memory consolidation.

I disagree. Who do you think is right?

marked as duplicate by Edwin Ashworth, choster, anongoodnurse, Scott, jimm101 Oct 28 '16 at 1:35

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

6

You are correct, your teacher is wrong. It's perfectly appropriate to use definite article to refers to the kind of object in general.

You can use Google Scholar to search for text in scientific publications. The results are pretty damning:

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