Chapter 10, Eye: External Structure, Figure Questions, Exercise 1

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Here is a tip:

The medial end of the upper lid has an orifice that opens into the lacrimal canaliculus.

Explanation

The tears accumulated in the medial canthus flow through the opening called superior lacrimal punctum present in the upper lid on the lacrimal papillae.

Verified Answer

Superior lacrimal punctum 

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