Lacrimal

{lak’ -rim-al) [lacrima, a tear]. Pertaining to the tears or to the organs secreting and conveying the tears. L. Apparatus, the lacrimal gland, ducts, canal, sac, and nasal duct. L. Artery, the first branch of the ophthalmic artery, supplying the gland. L. Bone, a bone upon the nasal side of the orbit, articulating with the frontal, the ethmoid, and superior maxillary bones, in which begin the lacrimal groove and nasal duct. L. Canals, or Canaliculi, superior and inferior, extend from the lacrimal puncta to the sac, and serve to convey the exce of tears from the eye to the nose. L. Caruncle. See Caruncle. L. Ducts, seven to fourteen ducts, LACRIMATION extending obliquely from the gland to the fornix conjunctivae, carrying the tears to the conjunctival surface of the eye-ball. L. Fist a fistula communicating with a lacrimal duct. L. Gland, the gland secreting the tears, situated in a depre ion of the frontal bone, the L. fo a, at the upper and outer angle of the orbit. L. ftake, the inward prolongation of the palpebral fi ure of the eyelids. L. Papilla. See Papilla. L. Probe, a probe for exploring or dilating the canaliculi and nasal duct. L. Puncta, the minute orifices of the canaliculi, upon the eyelids near the inner canthus. L. Sac, a saccular enlargement of the upper part of the nasal duct, into which the canaliculi empty. L. Style, a probe used in stricture of the nasal duct. 352