Fig. 45-11. The lacrimal apparatus (shown in blue). (1)The lacrimal gland, situated superolaterally, is concerned with the production of most of the tears. (2) The conjunctival sac facilitates their distribution. (3) Medially, drainage begins at the lacrimal puncta and canaliculi (near which the plica semilunaris and the lacrimal caruncle can be seen). The letters "s" and "i" indicate the lines of reflection of the conjunctiva at the superior and inferior fornices of the conjunctival sac. Based largely on von Lanz and Wachsmuth. Click for high resolution image.