. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. LACRYMAL ORGANS. and another rather within the lower eyelid. See/gs. 12 & 14. Jig. deeply scooped out, and is about eight-tenths of an inch long and five-twentieths broad. The outer aspect of the nasal process of the superior maxillary bone is divided by an as- cending ridge, the continuation of that forming the lower margin of the orbit, into two sur- faces. The posterior surface, which is the narrower, forms the anterior half of the lacry- mal groove. The posterior half of the groove is formed by that narrow g
. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. LACRYMAL ORGANS. and another rather within the lower eyelid. See/gs. 12 & 14. Jig. deeply scooped out, and is about eight-tenths of an inch long and five-twentieths broad. The outer aspect of the nasal process of the superior maxillary bone is divided by an as- cending ridge, the continuation of that forming the lower margin of the orbit, into two sur- faces. The posterior surface, which is the narrower, forms the anterior half of the lacry- mal groove. The posterior half of the groove is formed by that narrow grooved part of the orbital surface of the lacrymal bone in front of its vertical crest. The line of junction (shin- dylesis) between the posterior margin of the nasal process of the superior maxillary bone and the anterior margin of the lacrymal runs down longitudinally in the bottom of the A left eye with the eyelids cut in the middle, and the outer halves everted to show the orifices of the ducts of the lacrymal gland, into which hairs are inserted. The preceding description of the lacrymal gland and its ducts shows that the latter and the lower mass at least of the former may be readily wounded along with the upper eyelid, and that in Crampton's operation for entro- pium, the lower mass of the gland, together with some of the lacrymal ducts, must neces- sarily be wounded, if the eyelid be cut through near the outer angle and to any height. In cases in which I have performed the operation, however, I have not observed any lacrymal fistula or other bad consequence follow. Tears.—Lacrymte, Fr. Les larmes; Ital. Le lagrime; Germ. Die Thranen. The lacry- mal secretion like the salivary appears con- stantly to flow, though in no greater quantity than is sufficient to moisten the surfaces of the conjunctiva. The derivative lacrymal organs are in this case equal to the removal of it; but when the tears are poured out in unusual quantity, as they are, like the salivary or uri- nar
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